Columbia subject headings:
Sickle cell anemia--Congresses.
Zinc deficiency diseases--Congresses.
Zinc in the body--Congresses.
Zinc--Metabolism--Congresses.
Harvard subject headings:
Sickle cell anemia--Congresses.
Zinc deficiency diseases--Congresses.
Zinc in the body--Congresses.
Zinc metabolism--Congresses.
Princeton subject headings:
Sickle cell anemia--Congresses.
Zinc deficiency diseases--Congresses.
Zinc in the body--Congresses.
Zinc metabolism--Congresses.