국민건강영양조사 제4기 1차년도(2007) 현장수행 정도관리 사업

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Korea national health and nutrition examination survey Ⅳ, the first year(2007) : quality control in the field

제목 (타언어): Korea national health and nutrition examination survey Ⅳ, the first year(2007) : quality control in the field