Cite
A simple and valid tool distinguished efficacy from effectiveness studies
MLA
Gartlehner, Gerald, et al. “A Simple and Valid Tool Distinguished Efficacy from Effectiveness Studies.” Journal of Clinical Epidemiology, vol. 59, no. 10, Oct. 2006, pp. 1040–48. EBSCOhost, https://doi.org/10.1016/j.jclinepi.2006.01.011.
APA
Gartlehner, G., Hansen, R. A., Nissman, D., Lohr, K. N., & Carey, T. S. (2006). A simple and valid tool distinguished efficacy from effectiveness studies. Journal of Clinical Epidemiology, 59(10), 1040–1048. https://doi.org/10.1016/j.jclinepi.2006.01.011
Chicago
Gartlehner, Gerald, Richard A. Hansen, Daniel Nissman, Kathleen N. Lohr, and Timothy S. Carey. 2006. “A Simple and Valid Tool Distinguished Efficacy from Effectiveness Studies.” Journal of Clinical Epidemiology 59 (10): 1040–48. doi:10.1016/j.jclinepi.2006.01.011.