Columbia subject headings:
Reticulo-endothelial system--Congresses.
Reticulo-endothelial system--Diseases--Congresses.
Harvard subject headings:
Reticulo-endothelial system--Congresses.
Reticulo-endothelial system--Diseases--Congresses.
Princeton subject headings:
Reticulo-endothelial system--Congresses.
Reticulo-endothelial system--Diseases--Congresses.