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

Abstract
Validation of weighed records and other methods of dietary assessment using the 24 h urine nitrogen technique and other biological markers - Volume 73 Issue 4 - S. A. Bingham, A. Cassidy, T. J. Cole, A. Welch, S. A. Runswick, A. E. Black, D. Thurnham, C. Bates, K. T. Khaw, T. J. A. Key, N. E. Day