00365nas a2200133   4500000000100000000000100001008004100002100001400043700001500057245012400072300001400196490000700210022001400217       2020                            d1 aR. Cushen1 aN. Francis00aAntibiotic use and serious complications following acute otitis media and acute sinusitis: a retrospective cohort study  ae255-e2630 v70  a0960-1643