Columbia subject headings:
Cell membranes--Congresses.
Tumors--Research--Congresses.
Harvard subject headings:
Cell membranes--Congresses.
Cell transformation, Neoplastic--Congresses.
Tumors--Research--Congresses.
Princeton subject headings:
Cell membranes--Congresses.
Cell transformation--Congresses.
Tumors--Research--Congresses.