Description  Claims  Cited references 

US5271928A   [0004] 
US5445813A   [0004] 
US5413774A   [0004] 
US5556610A   [0004] 
US5597549A   [0004] 
US5827504A   [0004] 
WO9729783A   [0004] 
WO2004069284A   [0004]  [0048] 
WO2007067979A2   [0005] 
US6139819A   [0042]  [0045] 
WO9818501A   [0043] 
WO9955383A   [0043] 
WO02055544A   [0045] 
WO0374005A   [0046] 
WO03084574A   [0046] 
EP0554213A   [0052] 
WO9409829A   [0054] 
US6258378B   [0060] 
WO2005063305A   [0060] 
WO2005063306A   [0060] 
US5545395A   [0060] 
EP804251A   [0060]