4Hongming Pan,Zaiyun Zhang.Efficacy and tolerability of oxycodone HCl controlled-release tablets on moderate to severe cancer pain.Clin Drug Invest,2007,27 (4):259-267.
5Greiner W,Lehmann K,Eamshaw S,et al.Economic evaluation of durogesic in moderate to severe,nonmalignant,chronic pain in Germany.Eur J Econ,2006,7(4):290-296.
6Roth S,Burch F,Fleichmann R,et al.The effect of controlled-released oxycodone on pain intensity and activities in patients with pain secondary to osteoarthritis.Am Pain Soc Prog Book,1995:147.