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[Beta-blocking agents in angina pectoris. A double-blind trial].
Aubert AB, Nyberg G, Slaastad R, Tjeldflaat L. Aubert AB, et al. Among authors: tjeldflaat l. Tidsskr Nor Laegeforen. 1970 Feb 15;90(4):409-13 passim. Tidsskr Nor Laegeforen. 1970. PMID: 4393271 Clinical Trial. Norwegian. No abstract available.