abstract one of the losses decrease's ways in fields, is the proper irrigation management, which its base is the accurate estimation of crop water requirement. equations which are used to calculate the reference evapotranspiration (eto), do not use the same climatic parameters and due to their empirical base, are not match to all climatic situations. so it is needed to clarify proper methods fo...

background: guillain-barre syndrome (gbs) is an acute immune-mediated peripheral neuropathy usually after an incident. this study was performed to investigate the basic epidemiologic features of gbs in south of iran. methods: we studied consecutive patients with gbs in nemazi hospital of shiraz, southern iran. demographic characteristics of the subjects, i.e. age, sex, and length of hospital st...