7Byrne JD,Betancourt T,Brannon-Peppas L.Active targeting schemes for nanoparticle systems in cancer therapeutics[J].Adv Drug Deliv Rev,2008,(60):1615-1626.
8Galmarini CM,Galmarini FC.Multidrug resistance in cancer therapy:Role of the microenvironment[J].Curr Opin Investig Drugs,2003,4(12):1416-1421.
9Van Sluis R,Bhujwalla ZM,Raghunand N,et al.In vivo imaging of extracellular pH using 1H MRS I[J].Magn Reson Med,1999,41(4):743-750.