Additional file 2: of Chronic obstructive pulmonary disease, bronchial asthma and allergic rhinitis in the adult population within the commonwealth of independent states: rationale and design of the CORE study
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â Employment status of the respondents in the CORE studyâ contains tabular data on distribution of the respondents by their employment status. (ZIP 23 kb)
创建时间：
2017-10-11
