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Author(s): Blegvad, Olaf Title: *Om xerophthalmien og dens forekomst i Denmark i aarene 1909–20 [Xerophthalmia and its occurrence in Denmark in the years 1909–20] Pagination: 162p. Place of Publication: Kbh. Date of Publication: 1923 Size: 8°. Language: Danish Type of Resource: Dissertation Series/Volume/Page: Series 4/Volume 2/Page 419