1. Pediatrics Department, National Institute for Mother and Child Health “Alessandrescu-Rusescu”, 020395 Bucharest, Romania
2. Pediatrics Department, Faculty of Medicine, University of Medicine and Pharmacy “Carol Davila”, 020021 Bucharest, Romania
3. Genetics Department, University of Medicine and Pharmacy, 200349 Craiova, Romania
4. Regional Center for Medical Genetics Dolj, 200642 Craiova, Romania
5. Faculty of Midwifery and Nursery, University of Medicine and Pharmacy “Carol Davila”, 020021 Bucharest, Romania
6. Neonatology Department, Clinical Hospital of Obstetrics and Gynecology “Prof. Dr. P.Sârbu”, 060251 Bucharest, Romania
7. Faculty of Biology, University of Bucharest, 030018 Bucharest, Romania