Columbia subject headings:
Stem cells--Research--Germany--Congresses.
Stem cells--Research--Italy--Congresses.
Harvard subject headings:
Stem cells--Experiments--History--Congresses.
Stem cells--Research--Germany--Public opinion--Congresses.
Stem cells--Research--Italy--Public opinion--Congresses.
Stem cells--Research--Law and legislation--Germany--Congresses.
Stem cells--Research--Law and legislation--Italy--Congresses.
Princeton subject headings: