TY  - RPRT
TI  - Certification for specialty practice?
AU  - P C Beecroft
AU  - J L Papenhausen
PY  - 1989
DO  - 10.1097/00002800-198900340-00001
UR  - https://pubmed.ncbi.nlm.nih.gov/2605553/
ID  - 2605553
ER  -