Mark-Alexander Sujan Floor Koornneef Udo Voges Goal-Based Safety Cases for Medical Devices: Opportunities and Challenges. 14-27 2007 conf/safecomp/2007 SAFECOMP http://dx.doi.org/10.1007/978-3-540-75101-4_2 db/conf/safecomp/safecomp2007.html#SujanKV07