Koo, M M <br/><br/>
Printed signatures and response rates.  [electronic resource] 

 -  Epidemiology (Cambridge, Mass.)  Sep 1995 
 - 568 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Letter; Randomized Controlled Trial 
<br/><br/><label>ISSN: </label>1044-3983 
<br/><br/><label>Standard No.: </label>10.1097/00001648-199509000-00022  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adolescent<br/>Child<br/>Cohort Studies<br/>Data Collection--methods<br/>Female<br/>Health Services Research<br/>Health Surveys<br/>Humans<br/>Menarche--physiology<br/>Postal Service<br/>Pregnancy