1. Department of Orthopedic Surgery; David Geffen School of Medicine at University of California at Los Angeles; Los Angeles, California
2. Department of Pediatrics; David Geffen School of Medicine at University of California at Los Angeles; Los Angeles, California
3. Department of Molecular Cell and Developmental Biology; University of California at Los Angeles; Los Angeles, California
4. Department of Human Genetics; David Geffen School of Medicine at University of California at Los Angeles; Los Angeles, California
5. Department of Obstetrics and Gynecology; David Geffen School of Medicine at University of California at Los Angeles; Los Angeles, California