Stefan MS, Shieh MS, Spitzer KA, Pekow PS, Krishnan JA, Au DH, Lindenauer PK. Association of Antibiotic Treatment With Outcomes in Patients Hospitalized for an Asthma Exacerbation Treated With Systemic Corticosteroids. JAMA Intern Med. 2019 03 01; 179(3):333-339.