Conception to obtain hematopoietic stem cells.
A couple may have a child to provide stem cells for another child. They may also use preimplantation testing--even, troubling though it is, prenatal testing and selective abortion--to ensure a close tissue match.
Robertson
John A
JA
Kahn
Jeffrey P
JP
Wagner
John E
JE
D000025:Abortion, Eugenic; D026688:Bioethical Issues; D005260:Female; D005307:Fertilization in Vitro; D005312:Fetal Blood; D018380:Hematopoietic Stem Cell Transplantation / Q000941:ethics* / Q000379:methods; D006650:Histocompatibility Testing; D006801:Humans; D011247:Pregnancy; D019836:Preimplantation Diagnosis; D011296:Prenatal Diagnosis; D012098:Reproduction / Q000941:ethics*; D014019:Tissue Donors / Q000941:ethics*