An appraisal of the male North American frog (Rana pipiens) pregnancy test with suggested modifications of the original technique.
D000818:Animals; D001001:Anura; D001681:Biological Assay; D005260:Female; D011247:Pregnancy / Q000175:diagnosis; D011258:Pregnancy Tests; D011894:Rana pipiens; D011898:Ranidae; D014481:United States
PREGNANCY/diagnosis, diagnostic