RT Journal Article SR Electronic T1 Obstructive sleep apnoea as a risk factor for osteopenia and osteoporosis in the male population: further data and comments JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1602471 DO 10.1183/13993003.02471-2016 VO 49 IS 4 A1 Claudio Liguori A1 Eleonora Piccirilli A1 Francesca Izzi A1 Nicola Biagio Mercuri A1 Umberto Tarantino A1 Fabio Placidi YR 2017 UL http://erj.ersjournals.com/content/49/4/1602471.abstract AB