STOCKHOLM--(BUSINESS WIRE)-- RaySearch Laboratories AB (publ.) (STO:RAYB) has received an order for its RayStation® treatment planning system from RISO, the Radiotherapeutic Institute in Deventer, the Netherlands. RISO is a public independent radiotherapeutic institute offering radiotherapy for multiple hospitals in the region. RISO provides state-of-the-art external beam treatments and is specialized in brachytherapy for prostate cancer.