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The Development and Relative Validity of a Pictorial Instrument for Vitamin a Intake Assessment in Groups of Peri-urban Guatemalan Toddlers [microform]

Vivian M. Krause

出版	Thesis (M.Sc.)--Université de Montréal, 1994
URL	http://books.google.com.hk/books?id=dRVfNAEACAAJ&hl=&source=gbs_api