Juha Mykkänen, Tomi Tikkanen, Juha Rannanheimo, Anne Eerola, Mikko Korpela. Specification Levels and Collaborative Definition for the Integration of Health Information Systems. In Robert H. Baud, Marius Fieschi, Pierre Le Beux, Patrick Ruch, editors, The New Navigators: from Professionals to Patients - Proceedings of MIE2003, Saint Malo, France. Volume 95 of Studies in Health Technology and Informatics, pages 304-309, IOS Press, 2003. [doi]