APA (7th ed.) Citation

Zheng, J., Smith, G. D., Gaunt, T. R., & Sobczyk, M. K. Systematic comparison of Mendelian randomisation studies and randomised controlled trials using electronic databases. BMJ Publishing Group.

Chicago Style (17th ed.) Citation

Zheng, Jie, George Davey Smith, Tom R. Gaunt, and Maria K. Sobczyk. Systematic Comparison of Mendelian Randomisation Studies and Randomised Controlled Trials Using Electronic Databases. BMJ Publishing Group.

MLA (9th ed.) Citation

Zheng, Jie, et al. Systematic Comparison of Mendelian Randomisation Studies and Randomised Controlled Trials Using Electronic Databases. BMJ Publishing Group.