Lemos-Jordão, Ana Janaina Jeanine Martins de, et al. “Combination of Melatonin and Metformin Hydrochloride for Treatment Polycystic Ovarian in Female Rats”. Acta Scientiae Veterinariae, vol. 44, no. 1, Jan. 2016, p. 10, doi:10.22456/1679-9216.81208.