Open Access Macedonian Journal of Medical Sciences, Vol 4, Iss 3, Pp 510-516 (2016) Open Access Macedonian Journal of Medical Sciences; Vol 4, No 3 (2016): Sep 15 (OAMJMS); 510-516 Open Access Macedonian Journal of Medical Sciences Open Access Macedonian Journal of Medical Sciences; Vol. 4 No. 3 (2016): Sep 15 (OAMJMS); 510-516