1. Delay of blastocyst implantation by ovariectomy or lactation. A scanning electron microscope study.;Bergström;Fertil. Steril.,1972
2. Trophoblastic factors involved in lysis of the blastocyst coverings and in implantation in the rabbit: observations on inversely orientated blastocysts.;Denker;J. Embryol. Exp. Morphol.,1974
3. Implantation. The role of proteinases, and blockage of implantation by proteinase inhibitors.;Denker;Adv. Anat. Embryol. Cell Biol.,1977
4. The implantation chamber, blastocyst and blastocyst imprint of the rat: a scanning electron microscope study.;Enders;Anal. Rec.,1975
5. Anatomical aspects of implantation.;Enders;J. Reprod. Fertil.,1976a