TY  - RPRT
TI  - Outside analysis of a multicenter collaborative study.
AU  - R F Prien
AU  - D J Kupfer
PY  - 1989
DO  - 10.1001/archpsyc.1989.01810050076012
UR  - https://pubmed.ncbi.nlm.nih.gov/2496677/
ID  - 2496677
ER  -