TY - RPRT TI - Deviant peer affiliations and depression: confounding or causation? AU - David M Fergusson AU - Brigitte Wanner AU - Frank Vitaro AU - L John Horwood AU - Nicola Swain-Campbell PY - 2003 DO - 10.1023/a:1026258106540 UR - https://pubmed.ncbi.nlm.nih.gov/14658741/ ID - 14658741 ER -