Columbia subject headings:
Biology--Classification--Congresses.
Coevolution--Congresses.
Host-parasite relationships--Congresses.
Harvard subject headings:
Biology--Classification--Congresses
Coevolution--Congresses.
Host-parasite relationships--Congresses
Princeton subject headings:
Biology--Classification--Congresses.
Coevolution--Congresses.
Host-parasite relationships--Congresses.