TY - JOUR A1 - Kippen, Rebecca A1 - Walters, Sarah T1 - Is Sibling Rivalry Fatal? Siblings and Mortality Clustering Y1 - 2012 DO - 10.1162/JINH_a_00305 JF - Journal of Interdisciplinary History VL - 42 IS - 4 SP - 571 EP - -591 ER -