“Acute and Unexpective Course Gastroenteritis? Sarcina Ventriculi and Helicobacter Pyloriy in German Shepherd Dog (Canis Lupus Familiaris)”. Gaceta de Ciencias Veterinarias, vol. 24, no. 2, Dec. 2019, pp. 10-13, https://revistas2.uclave.org/index.php/gcv/article/view/3289.