Columbia subject headings:
Leprosy--Epidemiology--Congresses.
Leprosy--Immunological aspects--Congresses.
Leprosy--Social aspects--Congresses.
Harvard subject headings:
Leprosy--Epidemiology--Congresses.
Leprosy--Immunological aspects--Congresses.
Leprosy--Social aspects--Congresses.
Princeton subject headings:
Leprosy--Epidemiology--Congresses.
Leprosy--Immunological aspects--Congresses.
Leprosy--Social aspects--Congresses.