Detection of mostly viral pathogens and high proportion of antibiotic treatment initiation in hospitalised children with community-acquired pneumonia in Switzerland – baseline findings from the first two years of the KIDS-STEP trial. Swiss Med Wkly [Internet]. 2023 Feb. 20 [cited 2025 Oct. 27];153(2):40040. Available from: https://www.smw.ch/index.php/smw/article/view/3298