1. Image Analysis Department, 3DHISTECH Ltd., 1141 Budapest, Hungary
2. John von Neumann Faculty of Informatics, Óbuda University, 1034 Budapest, Hungary
3. Medical Device Research Group, LPDS, Institute for Computer Science and Control, Hungarian Academy of Sciences (SZTAKI), 1111 Budapest, Hungary
4. 2nd Department of Internal Medicine, Semmelweis University, 1088 Budapest, Hungary