{HEAD ~ The composition} includes {TAIL ~ liposomes} having an outer surface and an inner surface defining an aqueous liposome compartment, and being composed of a vesicle forming lipid and of a vesicle forming lipid derivatized with a hydrophilic polymer to form a coating of hydrophilic polymer chains on both the inner and outer surfaces of the liposomes 
includes
{ HEAD ~ The composition } includes { TAIL ~ liposomes } having an outer surface and an inner surface defining an aqueous liposome compartment , and being composed of a vesicle forming lipid and of a vesicle forming lipid derivatized with a hydrophilic polymer to form a coating of hydrophilic polymer chains on both the inner and outer surfaces of the liposomes
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH