TY  - RPRT
TI  - Specialization and superspecialization in surgery.
AU  - C Eckert
PY  - 1974
DO  - 10.1001/archsurg.1974.01360020001001
UR  - https://pubmed.ncbi.nlm.nih.gov/4846491/
ID  - 4846491
ER  -