The EPIC-Norfolk Study

 

Validity and repeatability of a modified Baecke questionnaire on physical activity.

Pols MA, Peeters PH, Bueno-de-Mesquita HB, Ocké MC, Wentink CA, Kemper HC, and Collette HJ

International Journal of Epidemiology. Apr 1995

(DOI : 10.1093/ije/24.2.381)

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