Introduction to special issue on implantation.
Clark
David A
DA
Department of Medicine, McMaster University, Hamilton, Ontario, Canada. clarkd@mcmaster.ca
Coulam
Carolyn B
CB
D010064:Embryo Implantation; D004717:Endometrium / Q000502:physiology; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D009865:Oocytes / Q000166:cytology / Q000502:physiology*; D020554:Sperm Injections, Intracytoplasmic