RT Journal Article SR Electronic T1 Patients experienced physiological and psychological difficulties on long term home oxygen treatment JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 64 OP 64 DO 10.1136/ebn.1.2.64 VO 1 IS 2 YR 1998 UL http://ebn.bmj.com/content/1/2/64.1.abstract AB