For example,one question they wanted to answer was whether the loss of quality life years was due to people dying sooner - mortality - or living in poor health - morbidity.
VOA: standard.2010.08.10
Saudi Arabia stipulated in July that no individuals under the age of 12 or over the age of 65 would be allowed to participate in this year's Hajj, due to swine flu concerns.
VOA: standard.2009.11.29
应用推荐