Research ArticleOpen accessEvery word in the titleCorrelation of Oxytocin (OTR) and Estrogen Receptor (ER) mRNA in the Canine Placenta with the Detected Circulating Levels of Oxytocin and Estrogen during Pregnancy and ParturitionGisele Almeida Lima Veiga, Marcella Pecora Milazzotto, Marcilio Nichi et al.American Journal of Animal and Veterinary Sciences, Vol. 11, Issue 1 · 31 Dec 2015 · 8,272 accessesView PDFCite