Measuring dietary change in a diet intervention trial: comparing food frequency questionnaire and dietary recalls.
Thomson CA, Giuliano A, Rock CL, Ritenbaugh CK, Flatt SW, Faerber S, Newman V, Caan B, Graver E, Hartz V, Whitacre R, Parker F, Pierce JP, Marshall JR.
Thomson CA, et al.
Am J Epidemiol. 2003 Apr 15;157(8):754-62. doi: 10.1093/aje/kwg025.
Am J Epidemiol. 2003.
PMID: 12697580
Clinical Trial.