Developmental Origins of Rumination in Middle Childhood: The Roles of Early Temperament and Positive Parenting Schweizer, T.H.; Olino, T.M.; Dyson, M.W.; Laptook, R.S.; Klein, D.N. Journal of Clinical Child and Adolescent Psychology the Official Journal for the Society of Clinical Child and Adolescent Psychology American Psychological Association Division 53 47(Sup1): S409-S420 2018 1537-4416 10.1080/15374416.2017.1359787 https://eurekamag.com/research/059/595/059595691.php