RT Journal Article SR Electronic T1 Respiratory training in Greece JF Breathe JO Breathe FD European Respiratory Society SP 251 OP 253 DO 10.1183/20734735.009317 VO 13 IS 3 A1 Fotios Drakopanagiotakis A1 Athina Trachalaki A1 Ioannis Psallidas YR 2017 UL http://breathe.ersjournals.com/content/13/3/251.abstract AB