APA aipamena

Bell, M. L., Kenward, M. G., Fairclough, D. L., & Horton, N. J. (2013). Differential dropout and bias in randomised controlled trials: When it matters and when it may not. BMJ.

Chicago Style aipamena

Bell, Melanie L., Michael G. Kenward, Diane L. Fairclough, and Nicholas J. Horton. "Differential Dropout and Bias in Randomised Controlled Trials: When It Matters and When It May Not." BMJ 2013.

MLA aipamena

Bell, Melanie L., Michael G. Kenward, Diane L. Fairclough, and Nicholas J. Horton. "Differential Dropout and Bias in Randomised Controlled Trials: When It Matters and When It May Not." BMJ 2013.