da Silva, Helen K., Laerte D. Cassoli, José C. F. Pantoja, Pedro H. R. Cerqueira, Tatiane B. Coitinho, and Paulo F. Machado. 2016. “Short Communication: Bovine Milk Sampling Efficiency for Pregnancy-Associated Glycoproteins (PAG) Detection Test”. Spanish Journal of Agricultural Research 14 (4), e04SC01. https://doi.org/10.5424/sjar/2016144-9923.