EXTERNAL VALIDATION OF THE CLAIMS-BASED FRAILTY INDEX IN THE NATIONAL HEALTH AND AGING TRENDS STUDY COHORT

作者:Segal Jodi B*; Huang Jin; Roth David L; Varadhan Ravi
来源:American Journal of Epidemiology, 2017, 186(6): 745-747.
DOI:10.1093/aje/kwx257