A Repeated-Dose Evaluation of a Pain Relieving Drug Use and Safety of OROS Hydromorphone HCI in Patients With Chronic Non-Malignant Pain [clinicaltrials:NCT00410644]

A Repeated-Dose Evaluation of a Pain Relieving Drug Use and Safety of OROS Hydromorphone HCI in Patients With Chronic Non-Malignant Pain [clinicaltrials:NCT00410644]