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Joo MJ, Sharp LK, Au DH, Lee TA, Fitzgibbon ML.Joo MJ, et al. Among authors: sharp lk.COPD. 2013 Aug;10(4):444-9. doi: 10.3109/15412555.2013.766683. Epub 2013 Mar 28.COPD. 2013.PMID: 23537230Free PMC article.
Pacheco E, Sohn AJ, Wells C, Sharp LK, Madrid S, Lee TA, Chen YF, Yawn BP, Garcia D, Shim K, Quesada N, Joo MJ.Pacheco E, et al.Contemp Clin Trials. 2022 Dec;123:106971. doi: 10.1016/j.cct.2022.106971. Epub 2022 Oct 22.Contemp Clin Trials. 2022.PMID: 36280032Clinical Trial.