This is caused by various factors such as: the limited number of doctors and medical personnel in those districts, the distance from health centres, the lack of infrastructure (notably in mountainous districts), low educational levels, as well as hygienic-sanitary and socio-economic conditions in those districts.
是 可以 , 但 我?? 会 看得出? 来 他??? 这 么 做UN-2 UN-2