Yonat  Rum, Genzer, Shir , Markovitch, Noam , Jenkins, Jennifer , Perry, Anat , and Knafo-Noam, Ariel . 2022. ?Are There Positive Effects Of Having A Sibling With Special Needs? Empathy And Prosociality Of Twins Of Children With Non-Typical Development?. Child Development, 93, Pp. 1121?1128.