APA citiranje

Wan, F., Small, D., Bekelman, J. E., & Mitra, N. (2015). Bias in estimating the causal hazard ratio when using two-stage instrumental variable methods. Stat Med.

Citação norma Chicago

Wan, Fei, Dylan Small, Justin E. Bekelman, and Nandita Mitra. "Bias in Estimating the Causal Hazard Ratio When Using Two-stage Instrumental Variable Methods." Stat Med 2015.

MLA citiranje

Wan, Fei, Dylan Small, Justin E. Bekelman, and Nandita Mitra. "Bias in Estimating the Causal Hazard Ratio When Using Two-stage Instrumental Variable Methods." Stat Med 2015.