APA (7th ed.) Citation

Vinogradova, Y., Coupland, C., & Hippisley-Cox, J. (2018). Use of combined oral contraceptives and risk of venous thromboembolism: Nested case-control studies using the QResearch and CPRD databases. BMJ Publishing Group.

Chicago Style (17th ed.) Citation

Vinogradova, Y., C. Coupland, and J. Hippisley-Cox. Use of Combined Oral Contraceptives and Risk of Venous Thromboembolism: Nested Case-control Studies Using the QResearch and CPRD Databases. BMJ Publishing Group, 2018.

MLA (9th ed.) Citation

Vinogradova, Y., et al. Use of Combined Oral Contraceptives and Risk of Venous Thromboembolism: Nested Case-control Studies Using the QResearch and CPRD Databases. BMJ Publishing Group, 2018.