Krogholm K.S., Haraldsdottir J., Knuthsen P., Rasmussen S.E. (2004) Urinary total flavonoid excretion but not 4-pyridoxic acid or potassium can be used as a biomarker for the intake of fruits and vegetables. J Nutr 134:445-51 PubMed (25332486)

Abbreviation: KROGHOLM 2004

Pubmed ID: 25332486