24
Participants
Start Date
May 22, 2018
Primary Completion Date
December 31, 2019
Study Completion Date
December 31, 2020
No Intervention
No Intervention. This is an observational study.
Icahn School of Medicine at Mount Sinai, New York
National Institutes of Health, Bethesda
Rush University Medical Center, Chicago
University of Texas Southwestern, Dallas
Stanford University, Stanford
Boston Children's Hospital, Boston
Phelan-McDermid Syndrome Foundation
OTHER
Boston Children's Hospital
OTHER