label: poly(ethylenimine)-co-(N-(2-aminoethyl) ethyleneimin)-co-N-(N-cholesteryloxycarbonyl-(2-aminoethyl)ethylenimine)
label_lc: poly(ethylenimine)-co-(n-(2-aminoethyl) ethyleneimin)-co-n-(n-cholesteryloxycarbonyl-(2-aminoethyl)ethylenimine)