title: Forms of Trypanosoma sp. in Rana ridibunda from Saudi Arabia.
mesh_terms: D000818:Animals; D011895:Rana ridibunda / Q000469:parasitology*; D011898:Ranidae / Q000469:parasitology*; D012529:Saudi Arabia; D014345:Trypanosoma / Q000145:classification / Q000166:cytology*