TY  - RPRT
TI  - Recertification.
AU  - Robert S Crausman
PY  - 2002
DO  - 10.7326/0003-4819-137-12-200212170-00038
UR  - https://pubmed.ncbi.nlm.nih.gov/12484738/
ID  - 12484738
ER  -