Columbia subject headings:
Blood--Circulation, Artificial--Congresses.
Cardiology--Research--Congresses.
Cardiovascular instruments, Implanted--Congresses.
Heart, Artificial--Congresses.
Harvard subject headings:
Blood--Circulation, Artificial--Congresses.
Cardiovascular instruments, Implanted--Congresses.
Heart, Artificial--Congresses.
Princeton subject headings: