scholarly journals Open-Label Study on the Long-Term Efficacy, Safety, and Impact on Quality of Life of OROS Hydromorphone ER in Patients with Chronic Low Back Pain

Pain Medicine ◽  
2010 ◽  
Vol 11 (10) ◽  
pp. 1477-1488 ◽  
Author(s):  
Mark Wallace ◽  
John Thipphawong
2003 ◽  
Vol 11 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Olle Hägg ◽  
Carol Burckhardt ◽  
Peter Fritzell ◽  
Anders Nordwall

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