Description  Claims  Drawing  Cited references 

US2013027515A1   [0012] 
US5910130A   [0013] 
US2011063428A1   [0014] 
US2009030295A1   [0015] 
US7529577B2   [0016] 
EP2014220A1   [0017] 
EP2289391A1   [0018] 
EP2277439A2   [0019] 
US5868682B1   [0102] 

Scand. Audiol.   [0188]