This invention features conjugates, degradable linkers, compositions, methods of synthesis, and applications thereof, including cholesterol, folate, galactose, galactosamine, N-acetyl galactosamine, PEG, phospholipid, peptide and human serum albumin (HSA) derived conjugates of biologically active compounds,...http://www.google.ca/patents/US20040249178?utm_source=gb-gplus-sharePatent US20040249178 - Conjugates and compositions for cellular delivery
