Temporal changes in blood biomarkers associated with sleep apnoea severity: a retrospective cohort study in Finland. Hellen M, Ruoranen T, Toppila-Salmi S, et al. Temporal changes in blood biomarkers associated with sleep apnoea severity: a retrospective cohort study in Finland. BMJ open. 2025;15(2):e090895. doi:10.1136/bmjopen-2024-090895 Read more