BMJ · 1965 · 64 citations · 0 references
MedicineAnimal SciencesImmunologyReproductive BiologyReproductive ImmunologyReproductive PhysiologyEmbryo ImplantationPregnancyPregnancy BiologyRodent ReproductionRodent Reproductive MedicineVeterinary Reproductive ImmunologyEmbryonic ImplantationImplantation PhysiologySham Treatment
animals were allowed to go to term there was no evidence of pregnancy up to 30 days after successful mating.When a sham operation was performed there was normal implantation in all 20 rats.