Columbia subject headings:
Calcium--Metabolism--Congresses.
Metabolism--Regulation--Congresses.
Parathyroid hormone--Physiological effect--Congresses.
Harvard subject headings:
Calcium regulating hormones--Congresses.
Calcium--Metabolism--Congresses
Calcium--Metabolism--Disorders--Congresses.
Metabolism--Regulation--Congresses.
Parathyroid hormone--Physiological effect--Congresses.
Princeton subject headings: