MRC Epidemiology Unit

 

Validation of weighed records and other methods of dietary assessment using the 24 h urine nitrogen technique and other biological markers.

Bingham SA, Cassidy A, Cole TJ, Welch A, Runswick SA, Black AE, Thurnham D, Bates C, Khaw KT, Key TJ

The British journal of nutrition. Apr 1995

(DOI : 10.1079/bjn19950057)

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