APA引文

Davies, N. M., von Hinke Kessler Scholder, S., Farbmacher, H., Burgess, S., Windmeijer, F., & Smith, G. D. (2015). The many weak instruments problem and Mendelian randomization. Stat Med.

Citação norma Chicago

Davies, Neil M., Stephanie von Hinke Kessler Scholder, Helmut Farbmacher, Stephen Burgess, Frank Windmeijer, and George Davey Smith. "The Many Weak Instruments Problem and Mendelian Randomization." Stat Med 2015.

MLA引文

Davies, Neil M., et al. "The Many Weak Instruments Problem and Mendelian Randomization." Stat Med 2015.