title: Diagnostic exercise. Tetrameres americana infection in pigeons.
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000175:diagnosis*; D010856:Columbidae; D005243:Feces / Q000469:parasitology; D005260:Female; D008297:Male; D009348:Nematoda / Q000033:anatomy & histology; D009349:Nematode Infections / Q000175:diagnosis / Q000662:veterinary*; D011531:Proventriculus / Q000469:parasitology