TY  - RPRT
TI  - "Endogenous" depression: some suggestions.
AU  - D Vann
PY  - 1972
DO  - 10.5694/j.1326-5377.1972.tb103821.x
UR  - https://pubmed.ncbi.nlm.nih.gov/4642438/
ID  - 4642438
ER  -