Items where authors include "Petropoulou, K"

Article

Greenwood, DC orcid.org/0000-0001-7035-3096, Hardie, LJ, Frost, GS et al. (17 more authors) (2019) Validation of the Oxford WebQ online 24-hour dietary questionnaire using biomarkers. American Journal of Epidemiology, 188 (10). pp. 1858-1867. ISSN 0002-9262

Wark, PA, Hardie, LJ, Frost, GS et al. (14 more authors) (2018) Validity of an online 24-h recall tool (myfood24) for dietary assessment in population studies: comparison with biomarkers and standard interviews. BMC Medicine, 16. 136. ISSN 1741-7015