193,446 AMERICAN American Heart Association. 47th Scientific Sessions,Scientific Sessions for Nurses. 28th Annual Meeting, Council on Arteriosclerosis - American Society for the Study of Arteriosclerosis, National Conference on Thrombosis and Hemostasis, Dallas,Texas. November 18-21, 1974. Abstracts. New York 1974 The American Association, Inc. 4° s. nlb. 4, 364, ilustr. Circulation, suppl. 3.