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Merchant, PhD, S.; Provenzano, MD, D.; Mody, PharmD, MBA, S.; Ho, PhD, K. F.; Etropolski, MD, M. Composite Measure to Assess efficacy/Gastrointestinal Tolerability of Tapentadol ER Versus Oxycodone CR for Chronic Pain: Pooled Analysis of Randomized Studies. J of Opioid Management 2013, 9, 51-61.