@article{Greenwald_2000 author = {Richard B. Greenwald and Charles D. Conover and Yun H. Choe}, title = {Poly(ethylene glycol) Conjugated Drugs and Prodrugs: A Comprehensive Review}, journal = {Critical Reviews™ in Therapeutic Drug Carrier Systems}, issn = {0743-4863}, year = {2000}, volume = {17}, number = {2}, }