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Al-Shaar L, Satija A, Wang DD, Rimm EB, Smith-Warner SA, Stampfer MJ, Hu FB, Willett WC.Al-Shaar L, et al. Among authors: willett wc.BMJ. 2020 Dec 2;371:m4141. doi: 10.1136/bmj.m4141.BMJ. 2020.PMID: 33268459Free PMC article.
Giovannucci E, Stampfer MJ, Colditz G, Rimm EB, Willett WC.Giovannucci E, et al. Among authors: willett wc.J Natl Cancer Inst. 1992 Jan 15;84(2):91-8. doi: 10.1093/jnci/84.2.91.J Natl Cancer Inst. 1992.PMID: 1310511