TY  - RPRT
TI  - Continuing medical education.
AU  - D M Lierle
AU  - G F Reed
PY  - 1970
DO  - 10.1001/archotol.1970.04310020001001
UR  - https://pubmed.ncbi.nlm.nih.gov/5428302/
ID  - 5428302
ER  -