1. Caregiving and 5-HTTLPR Genotype Predict Adolescent Physiological Stress Reactivity: Confirmatory Tests of Gene × Environment Interactions Sumner, Jennifer A.; McLaughlin, Katie A.; Walsh, Kate; Sheridan, Margaret A.; Koenen, Karestan C. 2015 Articles Stress in adolescenceChild development--ResearchNature and nurtureEpidemiologyPsychologyGenetics