(13) Dioxins and their effects on human healthhttp://translate.google.com.vn/translate?hl=vi&sl=en&u=http://www.who.int/mediacentre/factsheets/fs225/en/index.html&ei=FavESdr8A9aLkAXvkYV7&sa=X&oi=translate&resnum=2&ct=result&prev=/search%3Fq%3Ddioxins%26hl%3Dvi