Fung, M.; Thornton, A.; Mybeck, K.; Wu, J. H.-h.; Hornbuckle, K.; Muniz, E. (2001). "Evaluation of the Characteristics of Safety Withdrawal of Prescription Drugs from Worldwide Pharmaceutical Markets-1960 to 1999". Drug Information Journal. Quyển 35. tr. 293–317. doi:10.1177/009286150103500134.
Fung, M.; Thornton, A.; Mybeck, K.; Wu, J. H.-h.; Hornbuckle, K.; Muniz, E. (2001). "Evaluation of the Characteristics of Safety Withdrawal of Prescription Drugs from Worldwide Pharmaceutical Markets-1960 to 1999". Drug Information Journal. Quyển 35. tr. 293–317. doi:10.1177/009286150103500134.