Sub-contract A - proton therapy: The estimated annual value for the years 2022-2024 is NOK 36 million to NOK 55 million. Two national centres for particle therapy are being constructed, and are estimated to be operative during 2024. Therefore the need to procure proton therapy from abroad will be gradually reduced in the years 2024-2027. The maximum value is NOK 480 million. The maximum value is based on a 6-year contract period.