Salehzadeh, Farahmand, Rahim Madani, Aref Salehzadeh, Nordehr Rokni, and Farid Golchinefar. 2006. “Oxytetracycline Residue in Chicken Tissues from Tehran Slaughterhouses in Iran”. Pakistan Journal of Nutrition 5 (4): 377-81. https://doi.org/10.3923/pjn.2006.377.381.