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45. Oral contraceptives and relative risk of death from venous and pulmonary thromboembolism in the United States. Seigel DG, Markush RE. Am J Epidemiol; 1969 Jul; 90(1):11-6. PubMed ID: 5794004 [No Abstract] [Full Text] [Related]
49. Oral contraception and increased risk of cerebral ischemia or thrombosis. Collaborative Group for the Study of Stroke in Young Women. N Engl J Med; 1973 Apr 26; 288(17):871-8. PubMed ID: 4692903 [No Abstract] [Full Text] [Related]
57. Thrombosis-perspective on a major side effect of oral contraceptives. Med J Aust; 1976 May 22; 1(21):788, 790-3. PubMed ID: 958077 [Abstract] [Full Text] [Related]
58. Incidence of idiopathic venous thromboembolism in nurses. Ramsay LE, MacLeod MA. Br Med J; 1973 Nov 24; 4(5890):446-8. PubMed ID: 4758445 [Abstract] [Full Text] [Related]