(1)
Santos, L. M. dos; Santos, V. C. J.; Santos, S. R. C. J.; Malbouisson, L. M. S.; Carmona, M. J. C. Intrathecal Morphine Plus General Anesthesia in Cardiac Surgery: Effects on Pulmonary Function, Postoperative Analgesia, and Plasma Morphine Concentration . Clinics 2009, 64 (4), 279-285. https://doi.org/10.1590/S1807-59322009000400003.