The study was supported by the National Institute on Aging and the National Institute of EnvironmentalHealthScience. The researchers reported no conflicts of interest.
这项研究由国家老龄化研究所和国家环境健康科学研究所赞助。研究者报道没有任何利益的冲突。
2
Both sides have constantly deepened the cooperation in fields of science, technology, education, public health and environmental protection and the personnel exchanges become more vigorous.
双方在科技、教育、卫生、环保等领域合作不断深化，人员往来更为活跃。
3
Recent research by Peking University environmentalscience professors calculated the cost of particulate pollution on human health in the city for 2002 alone at 25,000 deaths and 7.2% of city GDP.