DOI:
10.1055/s-00034913
Phlebologie
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References
Lidegaard O, Nielsen LH, Skovlund CW, Skjeldestad FE, Lokkegaard E.
Risk of venous thromboembolism from use of oral contraceptives containing different progestogens and oestrogen doses: Danish cohort study, 2001–9.
BMJ (Clinical research ed) 2011;
343: d6423.
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