Peer GroupUnited StatesAntineoplastic Combined Chemotherapy ProtocolsTreatment OutcomePeer ReviewPeer Review, Health CarePeer Review, ResearchSociometric TechniquesInterpersonal RelationsRejection (Psychology)FriendsAdolescent BehaviorSocializationSocial BehaviorBullyingSocial EnvironmentSocial FacilitationSocial DesirabilityJuvenile DelinquencySocial ConformityStudentsSocial SupportMainstreaming (Education)AggressionAdolescent PsychologySelf-Help GroupsSocial AdjustmentPlay and PlaythingsSocial IdentificationImitative BehaviorQuestionnairesSchoolsLongitudinal StudiesParent-Child RelationsRemedial TeachingMentorsRisk-TakingSocial PerceptionTeachingParentingReinforcement, SocialProgram EvaluationManuscripts, MedicalChild BehaviorSubstance-Related DisordersSex FactorsUniversitiesHealth EducationAchievementSelf ConceptModels, PsychologicalAdolescent DevelopmentAttitudeChild Behavior DisordersPersonality DevelopmentEducational MeasurementAlcohol DrinkingRole PlayingProfessional Review OrganizationsWritingGender IdentityChild PsychologyInternal-External ControlFamily RelationsGeneralization (Psychology)ParentsEducation, SpecialViolencePublishingSocial IsolationSocial DistanceEditorial PoliciesHealth Knowledge, Attitudes, PracticeRisk FactorsFacultyUnited States Food and Drug AdministrationFeedbackAge FactorsConduct DisorderUnderachievementVolunteersTime FactorsSocial AlienationPeriodicals as TopicSocial NetworkingClinical CompetenceSexual BehaviorFollow-Up StudiesAdaptation, PsychologicalPsychosexual DevelopmentFamilyCross-Sectional StudiesLegislation, DrugNational Longitudinal Study of Adolescent HealthEligibility DeterminationFocus GroupsStudents, MedicalHealth PromotionAntisocial Personality DisorderAttitude to Health