1. Genetics and Environment Interaction Section National Human Genome Research Institute, National Institutes of Health Maryland USA
2. Department of Human Genetics McGill University and Research Institute of the McGill University Health Centre Montreal Quebec Canada
3. Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention Soochow University Suzhou China
4. MOH Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology the First Affiliated Hospital of Soochow University Suzhou China
5. Division of Genetics, Wadsworth Center New York State Department of Health Albany New York USA
6. Birth Defects Registry, New York State Department of Health, Albany New York and University at Albany School of Public Health Rensselaer New York USA
7. Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health Bethesda Maryland USA
8. Organic Acid Research Section National Human Genome Research Institute, National Institutes of Health Maryland USA
9. Department of Pediatrics University of Minnesota Medical School Minneapolis Minnesota USA
10. Division of Medical Biochemistry, Department of Specialized Medicine McGill University Health Centre Montreal Quebec Canada
11. Division of Medical Genetics, Department of Specialized Medicine McGill University Health Centre Montreal Quebec Canada