Columbia subject headings:
Chemotherapy, Combination--Evaluation--Congresses.
Chlorthalidone--Testing--Congresses.
Hypertension--Chemotherapy--Congresses.
Labetalol--Testing--Congresses.
Harvard subject headings:
Chemotherapy, Combination--Evaluation--Congresses.
Chlorthalidone--Testing--Congresses.
Hypertension--Chemotherapy--Congresses.
Labetalol--Testing--Congresses.
Princeton subject headings: