Validity and Reproducibility of a Semiquantitative Food Frequency Questionnaire for Measuring Intakes of Foods and Food Groups.
Gu X, Wang DD, Sampson L, Barnett JB, Rimm EB, Stampfer MJ, Djousse L, Rosner B, Willett WC.
Am J Epidemiol. 2023 Aug 08. PMID: 37552965