1. Medical University – Plovdiv, Faculty of Public Health, Department of Medical Informatics, Biostatistics and E-learning, 15A Vasil Aprilov Blvd., 4002 Plovdiv, Bulgaria
2. Medical University – Plovdiv, Faculty of Public Health, Department of Nursing Care, 15A Vasil Aprilov Blvd., 4002 Plovdiv, Bulgaria
3. Medical University – Plovdiv, Faculty of Public Health, Department of Midwifery Care, 15A Vasil Aprilov Blvd., 4002 Plovdiv, Bulgaria