@misc{indiciae31b5b209f193, title = {Diagnostic and therapeutic challenges.}, author = {H Schatz and H R McDonald and R N Johnson}, year = {1998}, doi = {10.1097/00006982-199803000-00013}, url = {https://pubmed.ncbi.nlm.nih.gov/9654420/}, note = {Source identifier: 9654420} }