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QUARTZ LAMP THERAPY IN HUMAN RICKETS AND RACHITIC SPASMOPHILIA:  EFFICACY OF SINGLE WEEKLY EXPOSURES

HENRY J. GERSTENBERGER, M.D.; J. I. HARTMAN, M.D.
JAMA. 1929;92(5):367-368. doi:10.1001/jama.1929.02700310013005.
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The observation that we1 made in one of our studies of last year in connection with the pathogenesis of rachitic spasmophilia, which showed that a single exposure of human low phosphorus rickets to mercury vapor quartz lamp ultraviolet rays caused the development of healing which continued, in a moderate degree, for a period of sixty-one days, made us realize that probably the different schedules for exposures in use at present in the treatment of rickets and rachitic spasmophilia are unnecessarily heavy. We were in a way prepared for this conclusion by the experience obtained from our work with cod liver oil, which taught us that much smaller doses of the material than those ordinarily given are adequate for the cure and prevention of rickets. One might imagine, too, that exposing infants and children to excessively large doses of ultraviolet rays might in some manner be harmful.

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