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Maintenance of a nutrient database for clinical trials.
Sievert YA, Schakel SF, Buzzard IM. Sievert YA, et al. Among authors: schakel sf. Control Clin Trials. 1989 Dec;10(4):416-25. doi: 10.1016/0197-2456(89)90006-8. Control Clin Trials. 1989. PMID: 2605960
INTERMAP: the dietary data--process and quality control.
Dennis B, Stamler J, Buzzard M, Conway R, Elliott P, Moag-Stahlberg A, Okayama A, Okuda N, Robertson C, Robinson F, Schakel S, Stevens M, Van Heel N, Zhao L, Zhou BF; INTERMAP Research Group. Dennis B, et al. J Hum Hypertens. 2003 Sep;17(9):609-22. doi: 10.1038/sj.jhh.1001604. J Hum Hypertens. 2003. PMID: 13679951 Free PMC article.
Enhancing data on nutrient composition of foods eaten by participants in the INTERMAP study in China, Japan, the United Kingdom, and the United States.
Schakel SF, Dennis BH, Wold AC, Conway R, Zhao L, Okuda N, Okayama A, Moag-Stahlberg A, Robertson C, Van Heel N, Buzzard IM, Stamler J. Schakel SF, et al. J Food Compost Anal. 2003 Jun;16(3):395-408. doi: 10.1016/S0889-1575(03)00043-7. Epub 2003 May 23. J Food Compost Anal. 2003. PMID: 31354186 Free PMC article.