1 Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA. Electronic address: vijaya.kancherla@emory.edu.
2 Division of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT, USA.
3 Food Fortification Initiative, Atlanta, GA, USA.
4 Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
5 Department of Neurosurgery, National Children's Hospital of Costa Rica, San Jose, Costa Rica.
6 Department of Neurosurgery, Children's of Alabama, University of Alabama at Birmingham, Birmingham, AL, USA.
7 Department of Neurosurgery, Addis Ababa University, Addis Ababa, Ethiopia.
8 Translational Neuroscience Research Laboratory, Faculty of Medicine, Universidad de La Sabana, Chia, Colombia; Pediatric Neurosurgery, Department of Neurosurgery, Fundacion Santa Fe de Bogota, Bogota, Colombia.
9 Department of Paediatric Surgery, Lilavati Hospital and Research Centre, Mumbai, India.
10 Department of Neurosurgery, Neuroscience Institute, University of Cape Town, Cape Town, South Africa.
11 International Federation for Spina Bifida and Hydrocephalus, Brussels, Belgium.
12 Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA.
13 Department of Neurosurgery, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.