Xiao-ying Pei, et al. “Protease-Activated Receptor-2 (PAR-2) Regulates Enterotoxigenic Escherichia Coli-Induced Diarrhea During Weaning in Piglets”. African Journal of Pig Farming, vol. 3, no. 1, May 2015, pp. 1-9, https://elixirpublishers.in/index.php/ajpf/article/view/669.