国家卫生和计划生育委员会公益性行业科研专项(201402009)%首都医学发展科研基金(2011-2006-05)%北京市科学技术委员会-国家国际科技合作与交流专项(2012DFA31110) Research Special Fund for Public Welfare Industry of Health(201402009)%Capital Health Research and Development Special Fund(2011-2006-05)%International Science & Technology Cooperation Program of China(2012DFA31110)