RT Journal Article SR Electronic T1 Estimated population prevalence of obstructive sleep apnoea in a community of German third graders JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 975 OP 975 DO 10.1183/09031936.00185610 VO 37 IS 4 A1 Finn, D. A1 McNally, P. YR 2011 UL http://erj.ersjournals.com/content/37/4/975.1.abstract AB