title: Detection of pregnancy in the bitch: a study of abdominal palpation, A-mode ultrasound and Doppler ultrasound techniques.
mesh_terms: D000818:Animals; D004285:Dogs; D004301:Doppler Effect; D005260:Female; D010173:Palpation / Q000662:veterinary*; D011247:Pregnancy; D011258:Pregnancy Tests / Q000379:methods / Q000662:veterinary*; D014463:Ultrasonography