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Ratanasuwan, P.; Nonphiaraj, S.; Pongjanyakul, S.; Somdee, W.; Taesiri, W. Efficacy of Combination of Ketamine and Morphine for Intravenous Patient Controlled- Analgesia in Upper Abdominal Surgery at Srinagarind Hospital. SRIMEDJ 2015, 30, 67.