Of the remaining 2231 reports, 66 corresponded to general anesthesia and 2165 corresponded to patients exposed to intrathecal fentanyl for C-section and were included in the study.
Del resto, 2.231 reportes, 66 correspondieron a anestesia general y 2.165, a pacientes con exposición a fentanilo intratecal para cesárea, y se incluyeron en el análisis.