Columbia subject headings:
Biological transport--Congresses.
Calcium in the body--Congresses.
Strontium in the body--Congresses.
Harvard subject headings:
Biological transport--Congresses
Calcium in the body--Congresses.
Strontium in the body--Congresses.
Princeton subject headings:
Biological transport--Congresses.
Calcium in the body--Congresses.
Strontium in the body--Congresses.