Estimating the trend of COVID-19 in Norway by combining multiple surveillance indicators - Gunnar Rø; Trude Marie Lyngstad; Elina Seppälä; Siri Nærland Skodvin; Lill Trogstad; Richard Aubrey White; Arve Paulsen; Trine Hessevik Paulsen; Trine Skogset Ofitserova; Petter Langlete; Elisabeth Henie Madslien; Karin Nygård; et al. (PLoS ONE, 2025)