1. Department of Molecular & Human Genetics; Baylor College of Medicine; Houston Texas 77030
2. Clinical Genetic Service; Department of Health; Hong Kong China
3. Department of Head and Neck Surgery; The University of Texas MD Anderson Cancer Center; Houston Texas 77030
4. Department of Obstetrics & Gynaecology; Li Ka Shing Faculty of Medicine; The University of Hong Kong; Hong Kong China
5. Department of Paediatrics and Adolescent Medicine; Queen Mary Hospital; Li Ka Shing Faculty of Medicine; The University of Hong Kong; Hong Kong China
6. Department of Pediatrics; Baylor College of Medicine; Houston Texas 77030
7. Human Genome Sequencing Center; Baylor College of Medicine; Houston Texas 77030
8. Texas Children's Hospital; Houston Texas 77030