Levorphanol as a Second Line Opioid in Reducing Pain in Patients With Cancer
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
Washington University School of Medicine
Loma Linda University
M.D. Anderson Cancer Center
Grünenthal GmbH
University Hospital, Basel, Switzerland
Indiana University
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
Mayo Clinic
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Pfizer