1. Division of Cardiac Pathology, Frontier Mediville, Frontier Life Line Hospital, Chennai, India
2. Dr. K M. Cherian Heart Foundation, Frontier Life Line hospital, Chennai, India
3. Department of Pathology, Rush University Medical Center, Chicago, University of Illinois at Chicago, Rosalind Franklin University of Sciences, North Chicago, Illinois
4. Fetal Cardiac Services, Division of Pediatric Cardiology, St. Gregorios Cardio-Vascular Centre, Parumala, Kerala, India