TY  - RPRT
TI  - Recertification for thoracic surgeons.
AU  - J L Ankeney
PY  - 1977
DO  - 10.1016/s0003-4975(10)64560-2
UR  - https://pubmed.ncbi.nlm.nih.gov/879876/
ID  - 879876
ER  -