APA

Wagner M., Balk E. M., Kent D. M., Kasiske B. L. & Ekberg H. (20091130). Subgroup analyses in randomized controlled trials: the need for risk stratification in kidney transplantation. : American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons.

Chicago

Wagner M, Balk E M, Kent D M, Kasiske B L and Ekberg H. 20091130. Subgroup analyses in randomized controlled trials: the need for risk stratification in kidney transplantation. : American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons.

Harvard

Wagner M., Balk E. M., Kent D. M., Kasiske B. L. and Ekberg H. (20091130). Subgroup analyses in randomized controlled trials: the need for risk stratification in kidney transplantation. : American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons.

MLA

Wagner M, Balk E M, Kent D M, Kasiske B L and Ekberg H. Subgroup analyses in randomized controlled trials: the need for risk stratification in kidney transplantation. : American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons. 20091130.