Columbia subject headings:
Adrenergic beta blockers--Congresses.
Angina pectoris--Chemotherapy--Congresses.
Hypertension--Chemotherapy--Congresses.
Metoprolol--Congresses.
Harvard subject headings:
Adrenergic beta blockers--Congresses.
Angina pectoris--Chemotherapy--Congresses.
Hypertension--Chemotherapy--Congresses.
Metoprolol--Congresses.
Princeton subject headings: