@meilufay absolutely yes to the first but worth checking out http://www.ncbi.nlm.nih.gov/m/pubmed/19711142/ … that's a meta study of 83 studies
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@meilufay absolutely yes to the first but worth checking out http://www.ncbi.nlm.nih.gov/m/pubmed/19711142/ … that's a meta study of 83 studies