TY  - RPRT
TI  - Senior elective.
AU  - J E Berkelhamer
AU  - D E Fisher
PY  - 1989
DO  - 10.1097/00001888-198911000-00011
UR  - https://pubmed.ncbi.nlm.nih.gov/2803428/
ID  - 2803428
ER  -