UZUNOV R, HAJRULAI-MUSLIU Z, DIMITRIEVSKA-STOJKOVIC E, STOJANOVSKA-DIMZOSKA B, SEKULOVSKI P. Use of ELISA for Preliminary Screening of 19 Nortestosterone Anabolic Steroid in Cattle Meat in Republic of Macedonia. Kafkas Univ Vet Fak Derg, 19 (1): 173-177, 2013. DOI: 10.9775/kvfd.2012.7527