Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Lichuan Ye and Grace W. Pien and Sarah J. Ratcliffe and Erla Björnsdottir and Erna Sif Arnardottir and Allan I. Pack and Bryndis Benediktsdottir and Thorarinn Gislason,The different clinical faces of obstructive sleep apnoea: a cluster analysis,European Respiratory Journal,0903-1936,European Respiratory Society (ERS),2014-09-03,44,6,1600-1607,https://cir.nii.ac.jp/crid/1363107368918284800,https://doi.org/10.1183/09031936.00032314