Introducing a New Algorithm for Classification of Etiology in Studies on Pediatric Pneumonia: Protocol for the Trial of Respiratory Infections in Children for Enhanced Diagnostics Study

Samuel Arthur Rhedin   ^{1, 2} , MD, PhD ;   Annika Eklundh   ¹ , MD ;   Malin Ryd-Rinder   ³ , MD, PhD ;   Pontus Naucler   ⁴ , MD, PhD ;   Andreas Mårtensson   ⁵ , MD, PhD ;   Jesper Gantelius   ⁶ , MD, PhD ;   Ingela Zenk   ¹ , RN ;   Helene Andersson-Svahn   ⁶ , PhD ;   Susanna Nybond   ⁶ , PhD ;   Reza Rasti   ^{1, 7} , MD ;   Magnus Lindh   ⁸ , MD, PhD ;   Maria Andersson   ⁸ , PhD ;   Ville Peltola   ⁹ , MD, PhD ;   Matti Waris   ⁹ , PhD ;   Tobias Alfvén   ^{1, 7} , MD, PhD

¹ Sachs' Children and Youth Hospital, South General Hospital, Stockholm, Sweden

² Department of Medical Epidemiology and Biostatistics, Karolinska Insitutet, Stockholm, Sweden

³ Astrid Lindgren Children's Hospital, Stockholm, Sweden

⁴ Division of Infectious Diseases, Department of Medicine, Solna, Karolinska Institutet & Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden

⁵ Department of Women's and Children's Health, International Maternal and Child Health (IMCH), Uppsala University, Uppsala, Sweden

⁶ Science for Life Laboratory, Division of Proteomics and Nanobiotechnology, KTH Royal Institute of Technology, Stockholm, Sweden

⁷ Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden

⁸ Department of Infectious Diseases, University of Gothenburg, Gothenburg, Sweden

⁹ Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland