Immunohistochemical Detection of Estrogen Receptors in Canine Mammary Tumors - Atanaskova Petrov, E; Gjorgoski, I; Ristoski, Trpe; Nikolovski, G; Trenkoska, P; Trojacanec, P; Ilievska, K; Dovenski, T; Petrushevska, G (My University, 2016)