RT Journal Article SR Electronic T1 Air travel for patients with chronic obstructive pulmonary disease: a case report JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 107 OP 108 DO 10.3399/bjgp12X625328 VO 62 IS 595 A1 Ioanna G Tsiligianni A1 Thys van der Molen A1 Nikolaos M Siafakas A1 Nikolaos E Tzanakis YR 2012 UL http://bjgp.org/content/62/595/107.abstract AB