TY  - RPRT
TI  - The depression system: preliminary studies.
AU  - D E Richardson
AU  - C W Dempsey
AU  - J H Song
PY  - 1997
DO  - 10.1159/000099928
UR  - https://pubmed.ncbi.nlm.nih.gov/9711720/
ID  - 9711720
ER  -