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Iwama, H., Shinoda, M., Nakane, M. et al. Nasal continuous positive airway pressure improves airway obstruction during midazolam-induced sedation under spinal or epidural anesthesia. J Anesth 12, 43–45 (1998). https://doi.org/10.1007/BF02480766
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DOI: https://doi.org/10.1007/BF02480766