APA引文

Howick, J., & Hoffmann, T. (2018). How placebo characteristics can influence estimates of intervention effects in trials. Canadian Medical Association.

Chicago Style (17th ed.) Citation

Howick, J., and T. Hoffmann. How Placebo Characteristics Can Influence Estimates of Intervention Effects in Trials. Canadian Medical Association, 2018.

MLA引文

Howick, J., and T. Hoffmann. How Placebo Characteristics Can Influence Estimates of Intervention Effects in Trials. Canadian Medical Association, 2018.

警告：這些引文格式不一定是100％准確.