RT Journal Article SR Electronic T1 Best evidence supports topical corticosteroids and routine saline irrigations for medical treatment of chronic rhinosinusitis JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 63 OP 63 DO 10.1136/ebmed-2015-110318 VO 21 IS 2 A1 John S Schneider YR 2016 UL http://ebm.bmj.com/content/21/2/63.abstract AB