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Yu Q, Chen R, Tang W, He H, Gallop R, Crits-Christoph P, Hu J, Tu XM.Yu Q, et al. Among authors: chen r.Stat Med. 2013 Jun 30;32(14):2390-405. doi: 10.1002/sim.5691. Epub 2012 Dec 12.Stat Med. 2013.PMID: 23239019Free PMC article.Review.
Hyrien O, Chen R, Zand MS.Hyrien O, et al. Among authors: chen r.Biol Direct. 2010 Jun 22;5:41. doi: 10.1186/1745-6150-5-41.Biol Direct. 2010.PMID: 20569476Free PMC article.
Chen R, Hyrien O.Chen R, et al.J Stat Plan Inference. 2011 Jul 1;141(7):2209-2227. doi: 10.1016/j.jspi.2011.01.016.J Stat Plan Inference. 2011.PMID: 21552356Free PMC article.
Hyrien O, Chen R, Mayer-Pröschel M, Noble M.Hyrien O, et al. Among authors: chen r.Biometrics. 2010 Jun;66(2):567-77. doi: 10.1111/j.1541-0420.2009.01281.x. Epub 2009 Jun 9.Biometrics. 2010.PMID: 19508238Free PMC article.