@misc{indiciae6395ffbb0679, title = {Diagnostic and therapeutic challenges.}, author = {H R McDonald and H Schatz and R N Johnson}, year = {1997}, doi = {10.1097/00006982-199711000-00010}, url = {https://pubmed.ncbi.nlm.nih.gov/9428019/}, note = {Source identifier: 9428019} }