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Dietary Supplement Use - Short-Form Self-Admin Questionnaire

Questionnaire Topic: 

Use of Dietary Supplements 

Study Title: 

Diet History Questionnaire 

Keywords: 

N/A

Principal Investigator(s): 

A. Subar 

Type of Questionnaire: 

Self-administered optical scan 

Last Year of Data Collection: 

2000 

Short/Long Form: 

Short Form 

Citation(s): 

Subar AF, Ziegler RG, Thompson FE, Johnson CC, Weissfeld JL, Reding D, Kavounis KH, Hayes RB. Is shorter always better? Relative importance of dietary questionnaire length and cognitive ease on response rates and data quality. Am J Epidemiol 2001;153:404-409. 

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