Secondary data analysis: a valuable resource.
Gleit
C
C
School of Nursing, University of Virginia, Charlottesville.
Graham
B
B
D000368:Aged; D003627:Data Interpretation, Statistical; D001330:Electronic Data Processing; D006306:Health Surveys; D006620:Hip Fractures / Q000209:etiology; D006801:Humans; D012307:Risk Factors