Srisuparp S, Strakova Z, Fazleabas AT (2001). "The role of chorionic gonadotropin (CG) in blastocyst implantation". Archives of Medical Research. 32 (6): 627–34. doi:10.1016/S0188-4409(01)00330-7. PMID11750740.
Srisuparp S, Strakova Z, Fazleabas AT (2001). "The role of chorionic gonadotropin (CG) in blastocyst implantation". Archives of Medical Research. 32 (6): 627–34. doi:10.1016/S0188-4409(01)00330-7. PMID11750740.