González-Barboteo, MD, J.; Alentorn, MD, PhD, X. G.-B.; Calvo Manuel, MD, PhD, F. A.; Candel, MD, V. A.; Eito, MD, M. A. P.; Sánchez-Magro, MD, PhD, I.; Pérez Martín, PhD, F. J.; Porta-Sales, MD, PhD, J. Effectiveness of Opioid Rotation in the Control of Cancer Pain: The ROTODOL Study. J of Opioid Management 2014, 10, 395-403.