1. Institute for Computer Science and Control, Pázmány Péter Catholic University, 1088 Budapest, Hungary
2. Institute for Computer Science and Control, 1111 Budapest, Hungary
3. Institute for Computer Science and Control, Óbuda University, 1084 Budapest, Hungary
4. Budapest Division of Neonatology Istst Department of Pediatrics, Department of Obstetrics and Gynecology, Semmelweis University, 1082 Budapest, Hungary