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Colombian Journal of Anesthesiology > 2016 > 44 > 2 > 146-150
Colombian Journal of Anesthesiology > 2015 > 43 > 2 > 142-146
Colombian Journal of Anesthesiology > 2016 > 44 > 2 > 146-150
Colombian Journal of Anesthesiology > 2015 > 43 > 2 > 142-146