Hypoluteoidism in a dog associated with recurrent mammary fibroadenoma stimulated by progestin therapy. - Zedda, Maria; Bogliolo, Luisa; Antuofermo, Elisabetta; Falchi, Laura; Ariu, Federica; Burrai, Giovanni; Pau, Salvatore (Acta Veterinaria Scandinavica, 2017)