Reichstetter S, Castillo GM, Rubinstein I, Nishimoto-Ashfield A, Lai M, Jones CC, Banerjee AA, Banjeree A, Lyubimov A, Bloedow DC, Bogdanov A, Bolotin EM. Protected graft copolymer excipient leads to a higher acute maximum tolerated dose and extends residence time of vasoactive intestinal Peptide significantly better than sterically stabilized micelles. Pharm Res. 2013 Mar; 30(3):670-82.