Characteristics of severely injured trauma patients transported by helicopter emergency medical services in Switzerland: a retrospective cohort study. Swiss Medical Weekly, [S. l.], v. 155, n. 6, p. 4502, 2025. DOI: 10.57187/s.4502. Disponível em: https://www.smw.ch/index.php/smw/article/view/4502. Acesso em: 15 oct. 2025.