Gergana, K., Coleman, A. L., Ensrud, K. E., Cauley, J. A., Yu, F., Stone, K. L., . . . Mangione, C. M. (2010). Reliability and validity of abbreviated surveys derived from the National Eye Institute Visual Function Questionnaire: The Study of Osteoporotic Fractures.

Gergana, Kodjebacheva, Anne L. Coleman, Kristine E. Ensrud, Jane A. Cauley, Fei Yu, Katie L. Stone, Kathryn L. Pedula, Marc C. Hochberg, and Carol M. Mangione. Reliability and Validity of Abbreviated Surveys Derived From the National Eye Institute Visual Function Questionnaire: The Study of Osteoporotic Fractures. 2010.

Gergana, Kodjebacheva, et al. Reliability and Validity of Abbreviated Surveys Derived From the National Eye Institute Visual Function Questionnaire: The Study of Osteoporotic Fractures. 2010.