4 mayo 2015
Policy changes in California to make the food and beverages that compete with school meal programs more healthy for students appear to have improved childhood overweight/obesity prevalence trends, although improvement was better among students attending schools in socioeconomically advantaged neighborhoods.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2KwxlPuHfyU/150504120813.htm
