4Burrows,Colin F.Viewpoints in Veteri- nary Medicine-Vomiting and Regurgitation in the Dog.Lehigh Valley:Alpo pet foods, 1990,1-9.
5Ove Svendsen.Long term effect of teflu- tixol on apomorphine-induced stereotypy and vomiting in dogs .European Journal of Pharmacology, 1979,53(4) : 387-390.
6Tomoshige Koga, Hiroyuki Fnkuda. Ef- fects of arterial PCO2 on the change from retching to vomiting in decrebrate dogs . Neuroscience Research Supplements, 1997.