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WikiPedia: Niels Ryberg Finsen http://www.finsenlab.dk/ http://www.rostra.dk/louis/andreart/Niels_Finsen.h... http://www.uh.edu/engines/epi1769.htm http://nobelprize.org/medicine/laureates/1903/fins... http://nobelprize.org./medicine/laureates/1903/ind... https://commons.wikimedia.org/wiki/Category:Niels_... https://commons.wikimedia.org/wiki/Niels_Ryberg_Fi...