TY  - GEN
AU  - Ryan,N D
AU  - Williamson,D E
AU  - Iyengar,S
AU  - Orvaschel,H
AU  - Reich,T
AU  - Dahl,R E
AU  - Puig-Antich,J
TI  - A secular increase in child and adolescent onset affective disorder
SN  - 0890-8567
PY  - 1992///0908
KW  - Bias
KW  - Child
KW  - Cohort Studies
KW  - Cross-Sectional Studies
KW  - Depressive Disorder
KW  - epidemiology
KW  - Female
KW  - Humans
KW  - Male
KW  - Pennsylvania
N1  - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S
UR  - https://doi.org/10.1097/00004583-199207000-00004
ER  -