Implantation and the mechanism of action of IUDs : proceedings of the Fifth International Planned Parenthood Federation Biological Workshop, Cambridge, April 1975 /
International Planned Parenthood Federation.Biological Workshop(5th :1975 :Cambridge, England)
Perry, J. S.(John Sherwood)
Heap, R. B.(Robert Brian),1935-
Cambridge [Eng.] : Journals of Reproduction and Fertility Ltd.,
1976.
Includes bibliographical references.
Ovum implantation
Intrauterine contraceptives