%0 Journal Article %T Installed Base as a Facilitator for User-Driven Innovation: How Can User Innovation Challenge Existing Institutional Barriers? %A Synnø %A ve Thomassen Andersen %A Arild Jansen %J International Journal of Telemedicine and Applications %D 2012 %I Hindawi Publishing Corporation %R 10.1155/2012/673731 %U http://dx.doi.org/10.1155/2012/673731