TY  - RPRT
TI  - Update in general internal medicine.
AU  - J V Sheffield
AU  - E B Larson
PY  - 1997
DO  - 10.7326/0003-4819-127-1-199707010-00008
UR  - https://pubmed.ncbi.nlm.nih.gov/9214252/
ID  - 9214252
ER  -