Development of measures of physical activity/exercise and tests of variations in physical activity levels within chronic disease groups in the Medical Outcomes Study / 
Anita L. Stewart [and others] 
 - 30 pages ;  28 cm. 
 - The Rand paper series;  P-7781 .
 - The Rand paper series;  P-7781 .
<br/><br/>Includes bibliographical references: pages 14-15 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Exercise therapy.<br/>Exercise tests--Measurement<br/>Chronic Disease.