Birgit Mazurek , Heidemarie Haupt , Agnieszka J Szczepek , Jörg Sandmann , Johann Gross , Burghard F Klapp , Holger Kiesewetter , Ulrich Kalus , Timo Stöver and Philipp P Caffier
Journal of Negative Results in BioMedicine 2009, 8:3doi:10.1186/1477-5751-8-3