RT Journal Article SR Electronic T1 Pneumology and sleep disordered breathing training in Portugal JF Breathe JO Breathe FD European Respiratory Society SP 248 OP 249 DO 10.1183/20734735.019818 VO 14 IS 3 A1 Mafalda van Zeller A1 Marta Drummond YR 2018 UL http://breathe.ersjournals.com/content/14/3/248.abstract AB