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The seasonal trend of the asthmatic exacerbations in 603 patients who were visited for acute asthma in 2016 in the Pediatric ED of the Pediatric Department of S. Orsola-Malpighi University Hospital of Bologna and divided into 2 subgroups: patients younger than 6 years (n = 459; 76%) and those aged 6 years and older (n = 144; 24%).
