Description  Claims  Cited references 

US5413999A   [0003] 
US5585397A   [0003] 
US5196438A   [0003] 
US5484801A   [0003] 
US5484926A   [0003] 
US5852195A   [0003] 
WO0138332A   [0048]  [0049] 
WO0230930A   [0048]  [0049] 

Proc. Nat'l Acad. Sci.   [0001] 
Nature   [0002] 
EMBO J.   [0002] 
Science   [0002] 
Nature   [0002] 
New England J. Med.   [0003] 
New England J. Med.   [0003] 
Remington's Pharmaceutical Sciences   [0046] 
Remington - The Science and Practice of Pharmacy   [0046] 
Physicians' Desk Reference   [0049] 
Org. Proc. Res. Dev.   [0055] 
Tetrahedron   [0249]