Description  Claims  Cited references 

US5279816A   [0009] 
EP545594A1   [0009] 
US5302375A   [0009] 
US6368576B   [0013] 
US5718886A   [0014] 
US6419905B   [0015] 
US5989569A   [0016] 
US6045811A   [0016] 
US20030152528A   [0022]  [0022] 
US20020037977A   [0069] 
US6315991B   [0085] 

Kirk & Othmer, Encyclopedia of Clinical Technology   [0085] 
Drug Facts and Comparisons (loose leaf drug information service)   [0088] 
Chemicals Used in Food Processing   [0092]