TY  - RPRT
TI  - OR instructor's notebook: a teaching plan for positioning.
AU  - S Merrill
PY  - 1982
DO  - 10.1016/s0001-2092(07)62022-5
UR  - https://pubmed.ncbi.nlm.nih.gov/6915748/
ID  - 6915748
ER  -