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Martinez FJ, de Oca MM, Whyte RI, Stetz J, Gay SE, Celli BR.Martinez FJ, et al. Among authors: whyte ri.Am J Respir Crit Care Med. 1997 Jun;155(6):1984-90. doi: 10.1164/ajrccm.155.6.9196106.Am J Respir Crit Care Med. 1997.PMID: 9196106Clinical Trial.