Genetic and Environmental Contributions of Negative Valence Systems to Internalizing Pathways. - Cecilione JL; Rappaport LM; Hahn SE; Anderson AE; Hazlett LE; Burchett JR; Moore AA; Savage JE; Hettema JM; Roberson-Nay R (Twin research and human genetics : the official journal of the International Society for Twin Studies, 2018)