RT Journal Article SR Electronic T1 Broad-spectrum antibiotics gave no clinical benefit and more adverse effects than narrow-spectrum antibiotics in treating acute respiratory tract infections in US children JF BMJ Evidence-Based Medicine JO BMJ EBM FD BMJ Publishing Group Ltd SP 119 OP 120 DO 10.1136/bmjebm-2018-110938 VO 24 IS 3 A1 Lindbaek, Morten YR 2019 UL http://ebm.bmj.com/content/24/3/119.abstract AB