Pitfalls in estimating the effect of interventions in the critically ill using observational study designs.

MLA

Connors, A. F., Jr. “Pitfalls in Estimating the Effect of Interventions in the Critically Ill Using Observational Study Designs.” Critical Care Medicine, vol. 29, no. 6, June 2001, pp. 1283–84. EBSCOhost, https://doi.org/10.1097/00003246-200106000-00044.

APA

Connors, A. F., Jr. (2001). Pitfalls in estimating the effect of interventions in the critically ill using observational study designs. Critical Care Medicine, 29(6), 1283–1284. https://doi.org/10.1097/00003246-200106000-00044

Chicago

Connors, A F, Jr. 2001. “Pitfalls in Estimating the Effect of Interventions in the Critically Ill Using Observational Study Designs.” Critical Care Medicine 29 (6): 1283–84. doi:10.1097/00003246-200106000-00044.