Clinical, genetic, and cognitive correlates of seizure occurrences in Phelan-McDermid syndrome oleh Tess Levy, Jacob Gluckman, Paige M. Siper, Danielle Halpern, Jessica Zweifach, Rajna Filip-Dhima, J. Lloyd Holder, M. Pilar Trelles, Kristina Johnson, Jonathan A. Bernstein, Elizabeth Berry-Kravis, Craig M. Powell, Latha Valluripalli Soorya, Audrey Thurm, Joseph D. Buxbaum, Mustafa Sahin, Alexander Kolevzon, Siddharth Srivastava, on behalf of the Developmental Synaptopathies Consortium