Aykaç K, Karadağ-Öncel E, Bayhan C, et al. Prevalence and seasonal distribution of viral etiology of respiratory tract infections in inpatients and outpatients of the pediatric population: 10 year follow-up. Turk J Pediatr 2018; 60: 642-652. https://doi.org/10.24953/turkjped.2018.06.004