Increasing sleep apnoea burden in the elderly in Finland from 1996 to 2018: A national registry study. - Hasala H; Mattila T; Kreivi HR; Avellan-Hietanen H; Vasankari T; Herse F; Leskelä RL; Toppila-Salmi S; Erhola M; Jääskeläinen T; Haahtela T (Respiratory medicine and research, 2025)