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Comment

. 2015 Jun 24:350:h3308.

doi: 10.1136/bmj.h3308.

Authors' reply to Zagarella

Yana Vinogradova¹, Carol Coupland², Julia Hippisley-Cox²

Affiliations

PMID: 26109585
DOI: 10.1136/bmj.h3308

Comment

Authors' reply to Zagarella

Yana Vinogradova et al. BMJ. 2015.

. 2015 Jun 24:350:h3308.

doi: 10.1136/bmj.h3308.

Authors

Yana Vinogradova¹, Carol Coupland², Julia Hippisley-Cox²

Affiliations

¹ University of Nottingham, Nottingham, UK yana.vinogradova@nottingham.ac.uk.
² University of Nottingham, Nottingham, UK.

PMID: 26109585
DOI: 10.1136/bmj.h3308

No abstract available

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Comment on

Use of combined oral contraceptives and risk of venous thromboembolism: nested case-control studies using the QResearch and CPRD databases.
Vinogradova Y, Coupland C, Hippisley-Cox J. Vinogradova Y, et al. BMJ. 2015 May 26;350:h2135. doi: 10.1136/bmj.h2135. BMJ. 2015. PMID: 26013557 Free PMC article.
Oral contraceptive study omitted several confounders.
Zagarella SS. Zagarella SS. BMJ. 2015 Jun 24;350:h3303. doi: 10.1136/bmj.h3303. BMJ. 2015. PMID: 26108435 No abstract available.

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