title: A report on the use of the African clawed frog (Xenopus laevis Daudin) for early diagnosis of pregnancy.
authors.forename: H J
authors.initials: HJ
authors.lastname: SILVER
authors.forename: P T
authors.initials: PT
authors.lastname: RUTTER
authors.forename: W F
authors.initials: WF
authors.lastname: HEWITT
mesh_terms: D000818:Animals; D042241:Early Diagnosis; D011247:Pregnancy / Q000175:diagnosis; D014982:Xenopus laevis