Xifeng Wu
... that according to a study conducted by epidemiologist Xifeng Wu and her colleagues, fifteen minutes of moderate exercise per day can increase lifespan by an average of three years?
... that according to a study conducted by epidemiologist <b id="mwAmE"><a href="./Xifeng_Wu" id="mwAmI" rel="mw:WikiLink" title="Xifeng Wu">Xifeng Wu</a></b> and her colleagues, fifteen minutes of moderate exercise per day can increase lifespan by an average of three years?