Huldschinsky1 has shown conclusively that when children suffering from rickets are exposed repeatedly to the rays of the mercury vapor quartz lamp, healing of the rachitic process ensues. The changes were demonstrated by means of roentgenograms. The work has been amply confirmed by others. Howland and Kramer2 have reported the observation that the inorganic phosphorus of the serum is markedly reduced in uncomplicated rickets and that the concentration of this substance rises to normal or slightly above normal limits following the regular administration of cod liver oil. Iversen and Lenstrup3 have made a similar observation with regard to the acid soluble phosphorus of the plasma. In a previous paper2 the importance of a normal inorganic phosphorus concentration for the orderly progress of calcification has been emphasized. McCollum, Park and their associates have produced rickets in rats by administering a diet containing an excess of calcium but
KRAMER B, CASPARIS H, HOWLAND J. ULTRAVIOLET RADIATION IN RICKETS: EFFECT ON THE CALCIUM AND INORGANIC PHOSPHORUS CONCENTRATION OF THE SERUM. Am J Dis Child. 1922;24(1):20–26. doi:10.1001/archpedi.1922.04120070023002
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