Beckett, L A <br/><br/>
Analysis of change in self-reported physical function among older persons in four population studies.  [electronic resource] 

 -  American journal of epidemiology  Apr 1996 
 - 766-78 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0002-9262 
<br/><br/><label>Standard No.: </label>10.1093/oxfordjournals.aje.a008814  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Activities of Daily Living<br/>Aged<br/>Aged, 80 and over<br/>Aging<br/>Cross-Sectional Studies<br/>Persons with Disabilities--statistics & numerical data<br/>Female<br/>Follow-Up Studies<br/>Humans<br/>Longitudinal Studies<br/>Male<br/>Markov Chains<br/>Models, Statistical<br/>Physical Fitness<br/>Sex Characteristics<br/>United States