PO-1501: Frameless workflow for radiosurgery of arteriovenous malformations - A new software prototype. (November 2020) - Schmidhalter, D.; Henzen, D.; Herrmann, E.; Volken, W.; Mackeprang, P.; Ermis, E.; Hemmatazad, H.; Honegger, J.; Haas, B.; Fix, M.K.; Manser, P.