APA

Ellis B. H., Bannister W. M., Cox J. K., Fowler B. M., Shannon E. D., Drachman D., Adams R. W. & Giordano L. A. (20090630). Utilization of the propensity score method: an exploratory comparison of proxy-completed to self-completed responses in the Medicare Health Outcomes Survey. : Health and quality of life outcomes.

Chicago

Ellis Beth Hartman, Bannister Wade M, Cox Jacquilyn Kay, Fowler Brenda M, Shannon Erin Dowd, Drachman David, Adams Randall W and Giordano Laura A. 20090630. Utilization of the propensity score method: an exploratory comparison of proxy-completed to self-completed responses in the Medicare Health Outcomes Survey. : Health and quality of life outcomes.

Harvard

Ellis B. H., Bannister W. M., Cox J. K., Fowler B. M., Shannon E. D., Drachman D., Adams R. W. and Giordano L. A. (20090630). Utilization of the propensity score method: an exploratory comparison of proxy-completed to self-completed responses in the Medicare Health Outcomes Survey. : Health and quality of life outcomes.

MLA

Ellis Beth Hartman, Bannister Wade M, Cox Jacquilyn Kay, Fowler Brenda M, Shannon Erin Dowd, Drachman David, Adams Randall W and Giordano Laura A. Utilization of the propensity score method: an exploratory comparison of proxy-completed to self-completed responses in the Medicare Health Outcomes Survey. : Health and quality of life outcomes. 20090630.