[Insight-users] ImageFilter problems

Bill Lorensen bill.lorensen at gmail.com
Sat Dec 24 12:14:48 EST 2011 

More info.

I just ran it on my linux system (the other one was mingw).

Now it is crashing.  Maybe there is something funny with your .nii file.

I'll keep looking.

Also, I was just able to read it into Slicer which uses ITK...

Hmmm

On Sat, Dec 24, 2011 at 11:05 AM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> The code you sent has a typo in it, so I doubt that you ran it:
> writer->SetInput( shFIlter->GetOutput() );
> has to be
> writer->SetInput( shFilter->GetOutput() );
>
> After I fixed the compile error, the code works for me, at least when
> I use when I use the Laplacian. I ran it on your data file.
>
> How are you running the program. I find it unusual to run it as:
>
> TestFilter outputfile inputfile
>
> I would have expected
> TestFilter inputfile outputfile
>
> but that is how the code is written.
>
> Bill
>
> On Sat, Dec 24, 2011 at 10:18 AM, Fleysher, Lazar
> <lazar.fleysher at mountsinai.org> wrote:
>> Hello Bill
>>
>> I am definitely missing something...
>> Below is the code I use. There is a line with // which shows the Laplacian filter
>> I tried to use with the same outcome....
>>
>> Thanks
>>
>> Lazar
>> --------------------------------
>> start code
>> --------------------------------
>> #include "itkArray.h"
>> #include "itkVariableLengthVector.h"
>> #include "itkImage.h"
>> #include "itkImageRegionConstIterator.h"
>> #include "itkImageFileReader.h"
>> #include "itkImageFileWriter.h"
>> #include "itkImageRegionIteratorWithIndex.h"
>> #include "itkOptimalSharpeningImageFilter.h"
>> #include "itkLaplacianSharpeningImageFilter.h"
>>
>>
>> /////////////////////////////////////////////////////
>> template <unsigned int ImageDimension,unsigned int NVectorComponents>
>> int TestFilter(unsigned int argc, char *argv[])
>> {
>> std::cout << "testFilter executed" << std::endl;
>>
>>  typedef float  PixelType;
>>  typedef itk::Image<PixelType, ImageDimension>           ImageType;
>>  typedef itk::ImageRegionIteratorWithIndex<ImageType> Iterator;
>>  typedef itk::ImageFileReader<ImageType>  ImageFileReader;
>>  typedef itk::ImageFileWriter<ImageType> writertype;
>>
>>  typename ImageType::Pointer averageimage = NULL;
>>
>>  typename ImageFileReader::Pointer reader = ImageFileReader::New();
>>  reader->SetFileName(argv[2]); // load this image...
>>  reader->Update();
>>  averageimage=reader->GetOutput();
>>
>>    typedef itk::OptimalSharpeningImageFilter<ImageType,ImageType > sharpeningFilter;
>> //  typedef itk::LaplacianSharpeningImageFilter<ImageType,ImageType > sharpeningFilter;
>>  typename sharpeningFilter::Pointer shFilter = sharpeningFilter::New();
>>
>>    shFilter->SetInput( averageimage );
>>    shFilter->SetSValue(0.5);
>> std::cout << "before" << std::endl;
>>    shFilter->Update();
>> std::cout << "after" << std::endl;
>>
>>  std::cout << " writing output ";
>>  {
>>    typename writertype::Pointer writer = writertype::New();
>>    writer->SetFileName(argv[1]); // save into this name....
>>    writer->SetInput( shFIlter->GetOutput() );
>>    writer->Update();
>>  }
>>
>>  return 0;
>> }
>>
>> /////////////////////////////////////////////////////
>>
>> int main(int argc, char * argv[])
>> {
>>
>> TestFilter<3,1>(argc,argv);
>> return 0;
>> }
>> ---------------------------------------------------
>> end of code
>> --------------------------------------------------
>> ________________________________________
>> From: Bill Lorensen [bill.lorensen at gmail.com]
>> Sent: Saturday, December 24, 2011 07:52
>> To: Fleysher, Lazar
>> Cc: Insight-users at itk.org
>> Subject: Re: [Insight-users] ImageFilter problems
>>
>> Please send me your code.
>>
>> On Sat, Dec 24, 2011 at 6:45 AM, Fleysher, Lazar
>> <lazar.fleysher at mountsinai.org> wrote:
>>> Hello Bill
>>>
>>> Yes I am modifying your code. The only difference between your code and mine
>>> was the use of a pointer to access the filtered data... (was there anything else that I missed?)
>>>
>>> For laplacian example simply replace
>>>
>>> typedef itk::OptimalSharpeningImageFilter<ImageType,ImageType > sharpeningFilter;
>>>
>>> with
>>>
>>> typedef itk::LaplacianSharpeningImageFilter<ImageType,ImageType > sharpeningFilter;
>>>
>>>
>>> Same result: seg fault on Update...
>>>
>>> Thanks
>>>
>>> Lazar
>>>
>>> ________________________________________
>>> From: Bill Lorensen [bill.lorensen at gmail.com]
>>> Sent: Friday, December 23, 2011 17:52
>>> To: Fleysher, Lazar
>>> Cc: Insight-users at itk.org
>>> Subject: Re: [Insight-users] ImageFilter problems
>>>
>>> You are modifying my code, correct?
>>>
>>> Please send the code with the LaplacianSharpening.
>>>
>>>
>>> On Fri, Dec 23, 2011 at 5:47 PM, Fleysher, Lazar
>>> <lazar.fleysher at mountsinai.org> wrote:
>>>> Dear Bill
>>>>
>>>> I did try catching am exception, but none is generated.
>>>>
>>>> The filter was there in the code. I tried to put another one (laplacian), but
>>>> Result is the same: seg fault inside Update()....
>>>>
>>>> Lazar
>>>>
>>>> ________________________________________
>>>> From: Bill Lorensen [bill.lorensen at gmail.com]
>>>> Sent: Friday, December 23, 2011 17:21
>>>> To: Fleysher, Lazar
>>>> Cc: Insight-users at itk.org
>>>> Subject: Re: [Insight-users] ImageFilter problems
>>>>
>>>> Where did you get the filter: OptimalSharpeningImageFilter?
>>>>
>>>> On Fri, Dec 23, 2011 at 4:41 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
>>>>> Put a try/catch block around your code:
>>>>>  try
>>>>>    {
>>>>> your code
>>>>>  catch (itk::ExceptionObject& e)
>>>>>    {
>>>>>    std::cerr << "Exception detected: "  << e;
>>>>>    return EXIT_FAILURE;
>>>>>    }
>>>>>
>>>>> On Fri, Dec 23, 2011 at 4:23 PM, Fleysher, Lazar
>>>>> <lazar.fleysher at mountsinai.org> wrote:
>>>>>> Hello Bill
>>>>>>
>>>>>> Yes of course I have tried your version. As I said, I will not be
>>>>>> able to use your approach in the final application, but for test
>>>>>> purposes I did run your program with the same segmentation violation.
>>>>>> (in my final application I will need the pointer to filtered image as I will
>>>>>> do more things to it)
>>>>>>
>>>>>> ProcessObject::UpdateOutputData and calls inside it
>>>>>> cause segmentation violation whether update() is called directly or not.
>>>>>>
>>>>>> Thank you very much for your help
>>>>>>
>>>>>> Lazar
>>>>>> ________________________________________
>>>>>> From: Bill Lorensen [bill.lorensen at gmail.com]
>>>>>> Sent: Friday, December 23, 2011 16:09
>>>>>> To: Fleysher, Lazar
>>>>>> Cc: Insight-users at itk.org
>>>>>> Subject: Re: [Insight-users] ImageFilter problems
>>>>>>
>>>>>> itk does not use intermediate storage. When you say image1 = image2 it
>>>>>> is just assigning pointers.
>>>>>>
>>>>>> I'll try compiling and running your test program if I get a chance.
>>>>>>
>>>>>> Did you try my test program?
>>>>>>
>>>>>> On Fri, Dec 23, 2011 at 3:42 PM, Fleysher, Lazar
>>>>>> <lazar.fleysher at mountsinai.org> wrote:
>>>>>>> Dear Bill
>>>>>>>
>>>>>>> You suggest to feed the output of filter directly into the writer without
>>>>>>> the use of an intermediate storage. While in my end application
>>>>>>> this will not work, I have tried it here and the same thing happens.
>>>>>>>
>>>>>>> The segmentation violation is generated on filter->update() call...
>>>>>>>
>>>>>>> There is  something wong with ITK or libc
>>>>>>>
>>>>>>> What do you think?
>>>>>>>
>>>>>>> Lazar
>>>>>>>
>>>>>>> ________________________________________
>>>>>>> From: Bill Lorensen [bill.lorensen at gmail.com]
>>>>>>> Sent: Friday, December 23, 2011 15:01
>>>>>>> To: Fleysher, Lazar
>>>>>>> Cc: Insight-users at itk.org
>>>>>>> Subject: Re: [Insight-users] ImageFilter problems
>>>>>>>
>>>>>>> Try my attached version
>>>>>>>
>>>>>>> On Fri, Dec 23, 2011 at 2:48 PM, Fleysher, Lazar
>>>>>>> <lazar.fleysher at mountsinai.org> wrote:
>>>>>>>> Hello Bill
>>>>>>>>
>>>>>>>> Sorry for not being clear. Attached is the example which I am trying to work out.
>>>>>>>>
>>>>>>>> The way to execute is :
>>>>>>>>
>>>>>>>> TestFilter blah.nii.gz r16slice.nii.gz
>>>>>>>>
>>>>>>>> (unfortunately the image file is too large to be accepted by the mailing list)
>>>>>>>>
>>>>>>>> The function reads the file r16slice and applies filter to it and saves it on disk into blah.nii.gz
>>>>>>>>
>>>>>>>> If I do not exectute shFilter->Update(); than averageimage has no pixels just before write.
>>>>>>>> If I do execute shFilter->Update(); then this causes segmentation violation.
>>>>>>>> If I do not execute shFilter->Update(); and do not execute averageimage =  shFilter->GetOutput();
>>>>>>>> then the function works as copy and blah.nii.gz is identical to the r16slice.nii.gz....
>>>>>>>>
>>>>>>>> Thank you very much for your help
>>>>>>>>
>>>>>>>> Lazar
>>>>>>>> ________________________________________
>>>>>>>> From: Bill Lorensen [bill.lorensen at gmail.com]
>>>>>>>> Sent: Friday, December 23, 2011 12:44
>>>>>>>> To: Fleysher, Lazar
>>>>>>>> Cc: Insight-users at itk.org
>>>>>>>> Subject: Re: [Insight-users] ImageFilter problems
>>>>>>>>
>>>>>>>> itk is a demand driven pipelined system. Typically you set the input
>>>>>>>> to the next filter to be the output of the previous filter. Setting
>>>>>>>> the input/output chain just establishes the pipeline and does not
>>>>>>>> execute it. When you do an Updtae() on the last filter, the pipeline
>>>>>>>> executes.
>>>>>>>>
>>>>>>>> averageimage=shFilter->GetOutput() is OK, but in your first email you had said:
>>>>>>>> shFilter->SetInput( averageimage );
>>>>>>>> shFilter->SetSValue(0.5);
>>>>>>>> //  shFilter->Update();
>>>>>>>> averageimage =  shFilter->GetOutput();
>>>>>>>>
>>>>>>>> This modified averageimage was was the input to shFilter.
>>>>>>>>
>>>>>>>>
>>>>>>>> Please post a complete small, compilable example that fails. Including
>>>>>>>> snippets in e-mails is too prone to error and misinterpretation.
>>>>>>>>
>>>>>>>> thanks,
>>>>>>>>
>>>>>>>> Bill
>>>>>>>>
>>>>>>>> On Fri, Dec 23, 2011 at 11:39 AM, Fleysher, Lazar
>>>>>>>> <lazar.fleysher at mountsinai.org> wrote:
>>>>>>>>> Dear Bill Lorensen
>>>>>>>>>
>>>>>>>>> averageimage is decleared as float 3D and then it is read from a (NIFTI) file....
>>>>>>>>>
>>>>>>>>>  typename ImageFileReader::Pointer reader = ImageFileReader::New();
>>>>>>>>>  reader->SetFileName(argv[bigimage]);
>>>>>>>>>  reader->Update();
>>>>>>>>>  averageimage=reader->GetOutput();
>>>>>>>>>
>>>>>>>>> If I understood you correctly, I should run filter-> Update()
>>>>>>>>> than to save the image do writer->SetInput(shFilter->GetOutput());
>>>>>>>>> What is wrong with doing averageimage=shFilter->GetOutput()
>>>>>>>>> followed by writer->SetInput(averageimage) ?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Regardless, shFilter->Update() generates a segmentation violation.
>>>>>>>>> If I comment out the filter part, the image gets saved in to a file
>>>>>>>>> and everything seem to work correctly.
>>>>>>>>>
>>>>>>>>> So there is something strange with the filter ... but what?
>>>>>>>>>
>>>>>>>>> Here is the output of gdb. Definitely there is a problem with some threads...
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> [New Thread 2122320192 (LWP 15648)]
>>>>>>>>> [New Thread 46912496267840 (LWP 15512)]
>>>>>>>>> [New Thread 46913547483456 (LWP 15649)]
>>>>>>>>> [New Thread 46914596063552 (LWP 15650)]
>>>>>>>>> [Thread 2122320192 (LWP 15648) exited]
>>>>>>>>> [Thread 46914596063552 (LWP 15650) exited]
>>>>>>>>> [Thread 46913547483456 (LWP 15649) exited]
>>>>>>>>>
>>>>>>>>> Program received signal SIGSEGV, Segmentation fault.
>>>>>>>>> [Switching to Thread 46912496267840 (LWP 15512)]
>>>>>>>>> 0x0000003482c076e8 in pthread_join () from /lib64/libpthread.so.0
>>>>>>>>>
>>>>>>>>> Here we see that the filter created 4 threads, but could not join them correctly.
>>>>>>>>> Furthermore:
>>>>>>>>>
>>>>>>>>> (gdb) where
>>>>>>>>> #0  0x0000003482c076e8 in pthread_join () from /lib64/libpthread.so.0
>>>>>>>>> #1  0x00000000007dd2b5 in itk::MultiThreader::WaitForSingleMethodThread (this=0x1a11160, threadHandle=3)
>>>>>>>>>    at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/src/itkMultiThreaderPThreads.cxx:210
>>>>>>>>> #2  0x00000000007dd9af in itk::MultiThreader::SingleMethodExecute (this=0x1a11160)
>>>>>>>>>    at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/src/itkMultiThreader.cxx:332
>>>>>>>>> #3  0x00000000007207fb in itk::ImageSource<itk::Image<double, 3u> >::GenerateData (this=0x19cf700)
>>>>>>>>>    at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/include/itkImageSource.hxx:275
>>>>>>>>> #4  0x00000000007d36a6 in itk::ProcessObject::UpdateOutputData (this=0x19cf700)
>>>>>>>>>    at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/src/itkProcessObject.cxx:1500
>>>>>>>>> #5  0x00000000007e18f8 in itk::DataObject::UpdateOutputData (this=0x19c3830) at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/src/itkDataObject.cxx:434
>>>>>>>>> #6  0x0000000000705f43 in itk::ImageBase<3u>::UpdateOutputData (this=0x19c3830) at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/include/itkImageBase.hxx:285
>>>>>>>>> #7  0x00000000007e1816 in itk::DataObject::Update (this=0x19c3830) at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/src/itkDataObject.cxx:359
>>>>>>>>> #8  0x00000000007d3bc1 in itk::ProcessObject::Update (this=0x19cf700) at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/src/itkProcessObject.cxx:1096
>>>>>>>>> #9  0x000000000077a82a in itk::OptimalSharpeningImageFilter<itk::Image<float, 3u>, itk::Image<float, 3u> >::GenerateData (this=0x19ce520)
>>>>>>>>>    at /work/home/xxx/ANTS/ANTS_SOURCE/ANTS/Examples/../Utilities/itkOptimalSharpeningImageFilter.hxx:142
>>>>>>>>> #10 0x00000000007d36a6 in itk::ProcessObject::UpdateOutputData (this=0x19ce520)
>>>>>>>>>    at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/src/itkProcessObject.cxx:1500
>>>>>>>>> #11 0x00000000007e18f8 in itk::DataObject::UpdateOutputData (this=0x19b52b0) at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/src/itkDataObject.cxx:434
>>>>>>>>> #12 0x0000000000705f43 in itk::ImageBase<3u>::UpdateOutputData (this=0x19b52b0) at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/include/itkImageBase.hxx:285
>>>>>>>>> #13 0x00000000007e1816 in itk::DataObject::Update (this=0x19b52b0) at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/src/itkDataObject.cxx:359
>>>>>>>>> #14 0x00000000007d3bc1 in itk::ProcessObject::Update (this=0x19ce520) at /work/home/xxx/ANTS/ITK_SOURCE/ITK/Modules/Core/Common/src/itkProcessObject.cxx:1096
>>>>>>>>> #15 0x000000000077d9ad in AverageImages1<3u, 1u> (argc=10, argv=0x7fffffffd7f8) at /work/home/xxx/ANTS/ANTS_SOURCE/ANTS/Examples/AverageImages.cxx:121
>>>>>>>>> #16 0x0000000000633770 in main (argc=10, argv=0x7fffffffd7f8) at /work/home/xxx/ANTS/ANTS_SOURCE/ANTS/Examples/AverageImages.cxx:308
>>>>>>>>>
>>>>>>>>> Does this provide some information about what is happening????
>>>>>>>>>
>>>>>>>>> The system I am running on is CentOS5, I guess:
>>>>>>>>>
>>>>>>>>> cat /etc/redhat-release
>>>>>>>>> Red Hat Enterprise Linux ES release 5
>>>>>>>>>
>>>>>>>>> cat /etc/redhat-release.CENTOS5.orig
>>>>>>>>> CentOS release 5.4 (Final)
>>>>>>>>>
>>>>>>>>> yum gives me this:
>>>>>>>>>
>>>>>>>>> yum list|grep libc
>>>>>>>>> glibc.i686                                  2.5-42                     installed
>>>>>>>>> glibc.x86_64                                2.5-42                     installed
>>>>>>>>> glibc-common.x86_64                         2.5-42                     installed
>>>>>>>>> glibc-devel.i386                            2.5-42                     installed
>>>>>>>>> glibc-devel.x86_64                          2.5-42                     installed
>>>>>>>>> glibc-headers.x86_64                        2.5-42                     installed
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Is this a problem with libc6?
>>>>>>>>>
>>>>>>>>> Thanks
>>>>>>>>>
>>>>>>>>> Lazar
>>>>>>>>>
>>>>>>>>> ________________________________________
>>>>>>>>> From: Bill Lorensen [bill.lorensen at gmail.com]
>>>>>>>>> Sent: Friday, December 23, 2011 08:37
>>>>>>>>> To: Fleysher, Lazar
>>>>>>>>> Cc: Insight-users at itk.org
>>>>>>>>> Subject: Re: [Insight-users] ImageFilter problems
>>>>>>>>>
>>>>>>>>> For a filter to run, you must either explicitly call Update() on it,
>>>>>>>>> or a filter down stream.
>>>>>>>>>
>>>>>>>>> Can you show the code that creates averageimage?
>>>>>>>>>
>>>>>>>>> Also, you should remove the statement:
>>>>>>>>> averageimage =  shFilter->GetOutput();
>>>>>>>>>
>>>>>>>>> It is already used as input to your filter. You are probably
>>>>>>>>> introducing some sort of cycle in the pipeline.
>>>>>>>>>
>>>>>>>>> Try
>>>>>>>>> writer->SetInput(shFilter->GetOutput());
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Fri, Dec 23, 2011 at 8:19 AM, Fleysher, Lazar
>>>>>>>>> <lazar.fleysher at mountsinai.org> wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Hello insight-users at itk.org.
>>>>>>>>>>
>>>>>>>>>> I am new to ITK and I am experiencing a strange problem with the image filters.
>>>>>>>>>> So I was wondering if someone could shed some light on this.
>>>>>>>>>>
>>>>>>>>>> I have this code
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>  typedef itk::OptimalSharpeningImageFilter<ImageType,ImageType > sharpeningFilter;
>>>>>>>>>>  typename sharpeningFilter::Pointer shFilter = sharpeningFilter::New();
>>>>>>>>>>  shFilter->SetInput( averageimage );
>>>>>>>>>>  shFilter->SetSValue(0.5);
>>>>>>>>>> //  shFilter->Update();
>>>>>>>>>>  averageimage =  shFilter->GetOutput();
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> which should filter the averageimage.
>>>>>>>>>>
>>>>>>>>>> Unfortunately, when I run this code the resulting averageimage contains zero pixels.
>>>>>>>>>> If I uncomment the "Update()" call (which I do not know if is needed) then
>>>>>>>>>> the Update() generates a segmentation violation.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> I have ITK installed from sources using git clone git://itk.org/ITK.git from
>>>>>>>>>> 2 days ago. I think it is version 4.1.
>>>>>>>>>>
>>>>>>>>>> Also, I have noticed that if I do not call Update() and try to save the image with
>>>>>>>>>>
>>>>>>>>>> typename writertype::Pointer writer = writertype::New();
>>>>>>>>>> writer->SetFileName("aaa");
>>>>>>>>>> writer->SetInput( averageimage );
>>>>>>>>>> writer->Update();
>>>>>>>>>>
>>>>>>>>>> writer->Update() never returns. That is, it cannot write an empty image.
>>>>>>>>>>
>>>>>>>>>> Am I doing something wrong? What is going on?
>>>>>>>>>>
>>>>>>>>>> Thank you very much for your help
>>>>>>>>>>
>>>>>>>>>> Lazar
>>>>>>>>>> _____________________________________
>>>>>>>>>> Powered by www.kitware.com
>>>>>>>>>>
>>>>>>>>>> Visit other Kitware open-source projects at
>>>>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>>>>
>>>>>>>>>> Kitware offers ITK Training Courses, for more information visit:
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>>>>>>>>>>
>>>>>>>>>> Please keep messages on-topic and check the ITK FAQ at:
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>>>>>>>>>>
>>>>>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>>>>>> http://www.itk.org/mailman/listinfo/insight-users
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Unpaid intern in BillsBasement at noware dot com
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Unpaid intern in BillsBasement at noware dot com
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Unpaid intern in BillsBasement at noware dot com
>>>>>>
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>>>>>> --
>>>>>> Unpaid intern in BillsBasement at noware dot com
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Unpaid intern in BillsBasement at noware dot com
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>>>>
>>>>
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>>>
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>>> Unpaid intern in BillsBasement at noware dot com
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