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Vessey, M. P., Doll, R., Fairbairn, A. S., & Glober, G. (1970).
Postoperative Thromboembolism and the Use of Oral Contraceptives. BMJ, 3(5715), 123–126.
doi:10.1136/bmj.3.5715.123
10.1136/bmj.3.5715.123
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2020-10-25
