RT Journal Article SR Electronic T1 Review: glucocorticoids improve symptoms of croup within 6 hours JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 74 OP 74 DO 10.1136/ebn.3.3.74 VO 3 IS 3 YR 2000 UL http://ebn.bmj.com/content/3/3/74.abstract AB