Simonetti L, Gardón JC, Ramos G. Residual levels on medroxyprogesterone acetate (MAP) impregnated sponges after estrus synchronization treatment in cyclic ewes. Braz. J. Vet. Res. Anim. Sci. [Internet]. 1999 Jan. 1 [cited 2024 May 4];36(5):240-3. Available from: https://www.revistas.usp.br/bjvras/article/view/5734