Columbia subject headings:
Immune response--Congresses.
Immunoglobulin A--Congresses.
Immunologic diseases--Congresses.
Intestines--Congresses.
Harvard subject headings:
Immune response--Congresses
Immunoglobulin A--Congresses.
Immunologic diseases--Congresses.
Intestines--Congresses.
Princeton subject headings:
Immune response--Congresses.
Immunoglobulin A--Congresses.
Immunologic diseases--Congresses.
Intestines--Congresses.