1. Department of Pediatrics and Medical Genetics, Faculty of Medicine, Medical University – Plovdiv, Plovdiv, Bulgaria
2. Department of Medical Genetics, University Hospital “Sveti Georgi” – Plovdiv, Plovdiv, Bulgaria
3. Department of Clinical Oncology, Faculty of Medicine, Medical University – Plovdiv, Plovdiv, Bulgaria
4. Clinic of Radiation Oncology, University Hospital “Sveti Georgi” – Plovdiv, Plovdiv, Bulgaria
5. Clinic of Medical Oncology, University Hospital “Sveti Georgi” – Plovdiv, Plovdiv, Bulgaria
6. Clinic of Clinical Hematology, University Hospital “Sveti Georgi” – Plovdiv, Plovdiv, Bulgaria