Columbia subject headings:
Biological transport--Congresses.
Cell membranes--Congresses.
Protons--Congresses.
Harvard subject headings:
Biological transport--Congresses.
Cell membranes--Congresses.
Protons--Congresses.
Princeton subject headings:
Biological transport--Congresses.
Cell membranes--Congresses.
Protons--Congresses.