Checking file: http://genome.ucsc.edu/goldenPath/help/pbTracksHelpFiles/pbTracksHelp.shtml

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Link = ModBase
URL = http://alto.compbio.ucsf.edu/modbase-cgi/index.cgi
          Response Code = 0
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Link = 2000 known pseudogenes
URL = http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12368239&dopt=Abstract
          Response Code = 0
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Link = Prediction of disulfide connectivity in proteins
URL = http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11673241&dopt=Abstract
          Response Code = 0
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Link = Prediction of the disulfide bonding state of cysteines in proteins with hidden neural networks
URL = http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12601133&dopt=Abstract
          Response Code = 0
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Count of links checked = 86
Count of error links   = 4