1. Center for International Health at Ludwig-Maximilians-University; Munich Germany
2. The Faculty of Medicine and Pharmacy; The University of Da Nang; Da Nang Vietnam
3. Department of Pediatric Cardiology and Intensive Care Medicine; Ludwig-Maximilians-University; Munich Germany
4. Da Nang Hospital for Women and Children; Da Nang Vietnam
5. Da Nang University of Medical Technology and Pharmacy; Da Nang Vietnam
6. Pediatric Endocrinology and Diabetology; University Children's Hospital; Ludwig-Maximilians-University; Munich Germany