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Cook RL, Weber KM, Mai D, Thoma K, Hu X, Brumback B, Karki M, Bryant K, Rathore M, Young M, Cohen M.Cook RL, et al.Contemp Clin Trials. 2017 Sep;60:72-77. doi: 10.1016/j.cct.2017.06.012. Epub 2017 Jun 19.Contemp Clin Trials. 2017.PMID: 28642209Free PMC article.Clinical Trial.
Helian S, Brumback BA, Cook RL.Helian S, et al. Among authors: brumback ba.Commun Stat Simul Comput. 2017;46(10):7924-7941. doi: 10.1080/03610918.2016.1255971. Epub 2017 May 9.Commun Stat Simul Comput. 2017.PMID: 29962657Free PMC article.
Williams R, Cook R, Brumback B, Cook C, Ezenwa M, Spencer E, Lucero R.Williams R, et al.BMC Public Health. 2020 May 19;20(1):723. doi: 10.1186/s12889-020-08891-3.BMC Public Health. 2020.PMID: 32429947Free PMC article.