(5-(2-hydroxy-4-chlorobenzoyl) aminovaleric acid, salts thereof, and compositions containing the same for the delivery of active agents are provided. Methods of administration, treatment of disease and preparation are provided as well.

 
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< Cysteine muteins in the C-D loop of human interleukin-11

> Solution polymerization processes to prepare a polymer that degrades to release a physiologically active agent

> Carboxymethylated cross-linked tetrameric hemoglobin
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