Authors
D. Vassileva
Department of Public Health and Health Care, Faculty of Public Health and Social Activities, University of Ruse “Angel Kanchev”, Bulgaria
I. Nedelcheva
Department of Orthopedics and Traumatology, University Hospital, Rousse, Bulgaria
S. Mindova
Department of Public Health and Health Care, Faculty of Public Health and Social Activities, University of Ruse “Angel Kanchev”, Bulgaria
I. Karaganova
Department of Public Health and Health Care, Faculty of Public Health and Social Activities, University of Ruse “Angel Kanchev”, Bulgaria
