Adaptation of the WHO COVID-19 Clinical Progression Scale for Registry-Based Data: A Whole-Population Study in Sweden

Jerndal H, Kalucza S, Jakobsson F, Hviid A, Grove Krause T, Ahlm C, Normark J, Fonseca-Rodríguez O, Eriksson M, Fors Connolly AM

Clinical Epidemiology 2025, 17:663-679

Published Date: 15 July 2025