TY  - RPRT
TI  - "Difficult-to-treat depression".
AU  - David J Kupfer
AU  - Dennis S Charney
PY  - 2003
DO  - 10.1016/s0006-3223(03)00188-4
UR  - https://pubmed.ncbi.nlm.nih.gov/12706948/
ID  - 12706948
ER  -