Tetens , I., Turrini , A., Tapanainen , H., Christensen , T., Lampe , J. W., Fagt , S., Håkansson , N., Lundquist , A., Hallund , J. and Valsta , L. M. (2013) “Dietary intake and main sources of plant lignans in five European countries”, Food & Nutrition Research, 00. doi: 10.3402/fnr.v57i0.19805.