TY  - RPRT
TI  - The depressive spectrum: diagnostic classification and course.
AU  - J Angst
AU  - K Merikangas
PY  - 1997
DO  - 10.1016/s0165-0327(97)00057-8
UR  - https://pubmed.ncbi.nlm.nih.gov/9268773/
ID  - 9268773
ER  -