Zong-ti Shao

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OBJECTIVE To study the temporal trend and spatial distribution of premature mortality burden due to chronic obstructive pulmonary disease (COPD) in terms of years of life lost (YLL) in an urban(More)
OBJECTIVE To understand the condition of the construction and management of sanitary latrines, and assess the effect of disposal of the excrement in rural schistosomiasis endemic areas in Yunnan(More)
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