Saut, João Paulo Elsen, et al. “Comparative Analysis Between the Cytobrush and Low-Volume Uterine Flush Techniques for Endometrial Cytology in Clinically Normal Postpartum Crossbred Dairy Cows”. Semina: Ciências Agrárias, vol. 34, nº 5, outubro de 2013, p. 2329-40, doi:10.5433/1679-0359.2013v34n5p2329.