TY  - RPRT
TI  - Methodologic issues in maintenance therapy clinical trials.
AU  - J B Greenhouse
AU  - D Stangl
AU  - D J Kupfer
AU  - R F Prien
PY  - 1991
DO  - 10.1001/archpsyc.1991.01810280029004
UR  - https://pubmed.ncbi.nlm.nih.gov/1901203/
ID  - 1901203
ER  -