Declaration of interest: FM, IR, EP-C and IL have received fees for services rendered to pharmaceutical firms producing hormonal contraceptives. The authors alone are responsible for the content and the writing of the paper.
Can a meta-analysis that included articles with high heterogeneity appropriately evaluate the risk of venous thromboembolism in users of combined hormonal contraceptives containing drospirenone or desogestrel? A reply to Rosa et al.
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