TY - RPRT TI - Do early difficult temperament and harsh parenting differentially predict reactive and proactive aggression? AU - Frank Vitaro AU - Edward Dylan Barker AU - Michel Boivin AU - Mara Brendgen AU - Richard E Tremblay PY - 2006 DO - 10.1007/s10802-006-9055-6 UR - https://pubmed.ncbi.nlm.nih.gov/17048109/ ID - 17048109 ER -