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Li Y, Reeves RM, Wang X, et al. RSV Global Epidemiology Network; RESCEU investigators. Global patterns in monthly activity of influenza virus, respiratory syncytial virus, parainfluenza virus, and metapneumovirus: a systematic analysis. Lancet Glob Health. 2019;7:e1031-e1045."},{"key":"2","doi-asserted-by":"crossref","unstructured":"2. Kang Y, Ohnishi T, Yutaka K, et al. Decrease in pediatric inpatients with respiratory syncytial virus infection during severe acute respiratory syndrome coronavirus 2 pandemic. Pediatr Int. 2022;64:e14717.","DOI":"10.1111\/ped.14717"},{"key":"3","doi-asserted-by":"crossref","unstructured":"3. van Summeren J, Meijer A, Aspelund G, et al. Low levels of respiratory syncytial virus activity in Europe during the 2020\/21 season: what can we expect in the coming summer and autumn\/winter? Euro Surveill. 2021;26:2100639.","DOI":"10.2807\/1560-7917.ES.2021.26.29.2100639"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4. 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