158 2003o-342 2007h-309 2009h-055 adolescent adolescentpsychology aggression anthropology behavioralassessmentofchildren bullying child childdevelopment childpsychotherapy communitymentalhealthservices culturalanthropology ego etiology friends friendshipinadolescence friendshipinchildren group groupidentity grouppsychotherapy infant interpersonalrelations interpersonalrelationsinadolescence interpersonalrelationsinchildren mentaldisorders mentalillness mentallyill mentallyillpersons peerpressure psychology psychotherapy rehabilitation rejection rejection(psychology) rejection(psychology)inchildren socialadjustment socialbehaviordisorders socialinteractioninchildren socialisolation socialization socialnetworks socialsupport teenagers ws460c847s2007