Columbia subject headings:
Bone marrow cells--Transplantation--Congresses.
Fetal blood--Congresses.
Hematopoietic stem cells--Transplantation--Congresses.
Liver cells--Transplantation--Congresses.
Harvard subject headings:
Bone marrow cells--Transplantation--Congresses.
Fetal blood--Congresses.
Fetal liver cells--Transplantation--Congresses.
Hematopoietic stem cells--Transplantation--Congresses.
Princeton subject headings: