The cases that met the necessary requirements were studied morphine 2 mg, n=38; morphine 3 mg, n=39 and placebo group, n=37 and no differences were found in terms of the demographic variables when the three groups were analyzed table 1.
Se estudiaron los casos que cumplieron los requisitos necesarios grupo morfina 2 mg, n = 38; grupo L morfina 3 mg; n = 39 y grupo placebo, n = 37 sin hallar diferencias en las variables demográficas al analizar los tres grupos entre sí tabla 1.