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Comment
. 2011 Feb;117(2 Pt 1):410-411.
doi: 10.1097/AOG.0b013e3182097025.

Epidemiologic research using administrative databases: garbage in, garbage out

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Comment

Epidemiologic research using administrative databases: garbage in, garbage out

Øjvind Lidegaard. Obstet Gynecol. 2011 Feb.
No abstract available

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Comment on

References

    1. Grimes DA. Epidemiologic research using administrative databases: garbage in, garbage out. Obstet Gynecol 2010;116:1018–9.
    1. Lidegaard Ø, Løkkegaard E, Svendsen AL, Agger C. Hormonal contraception and risk of venous thromboembolism: National follow-up study. BMJ 2009;339:b2890.
    1. Vlieg AvH, Helmerhorst FM, Vandenbroucke JP, Doggen CJ, Rosendaal FR. The venous thrombotic risk of oral contraceptives, effects of oestrogen dose and progestagen type: results of the MEGA case-control study. BMJ. 2009;339:b2921.

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