A prospective evaluation of plain radiographic signs of chronic obstructive pulmonary disease

John H. Woodring, Barbara A. Phillips, John W. West, John Ulmer, James K. Cooper
  • Journal of Thoracic Imaging, April 1991, Wolters Kluwer Health
  • DOI: 10.1097/00005382-199104000-00005

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http://dx.doi.org/10.1097/00005382-199104000-00005

The following have contributed to this page: John Ulmer