Santos, F. A. G. dos (2007) “Occurrence of gastrointestinal parasites in dogs (Canis familiaris) with acute diarrhea from metropolitan region of Londrina, Parana State, Brazil”, Semina: Ciências Agrárias, 28(2), pp. 257–268. doi: 10.5433/1679-0359.2007v28n2p257.