1. Department of Pediatric Gastroenterology and Nutrition, Sir Salimullah Medical College Mitford Hospital, Dhaka, Bangladesh.
2. Department of Pediatric Gastroenterology and Nutrition, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh.
3. Department of Radiology and Imaging, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh.
4. Department of Dermatology, Shahid Syed Nazrul Islam Medical College Hospital, Kishoregonj, Bangladesh.
5. Department of Pediatric Gastroenterology and Nutrition, Comilla Medical College, Comilla, Bangladesh.
6. Department of Pediatric Gastroenterology and Nutrition, Sylhet MAG Osmani Medical College Hospital, Sylhet, Bangladesh.