APA (7th ed.) Citation

Doll, R., & Peto, R. (1980). Randomised controlled trials and retrospective controls.

Chicago Style (17th ed.) Citation

Doll, R., and R. Peto. Randomised Controlled Trials and Retrospective Controls. 1980.

MLA (9th ed.) Citation

Doll, R., and R. Peto. Randomised Controlled Trials and Retrospective Controls. 1980.

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