TY  - RPRT
TI  - Is the credentialing study an all or nothing proposal.
AU  - E S Schrader
PY  - 1980
DO  - 10.1016/s0001-2092(07)69946-3
UR  - https://pubmed.ncbi.nlm.nih.gov/6898152/
ID  - 6898152
ER  -