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FREDERICK F. TISDALL, M.D. (TOR.); ALAN BROWN, M.B. (TOR.)

Am J Dis Child. 1927;34(5):721-736.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

A study of the literature on the etiology of rickets shows that practically no progress was made in the elucidation of the cause of this condition from the time of Glisson¹ until the investigations of the past ten years. The theories advanced were almost without number² and were apparently limited only by the imagination of the different investigators. Credit belongs to Mellanby,³ in 1918, for directing attention to the presence and importance of an antirachitic factor, or vitamin, in the prevention of this disease. Whether this factor was identical with or just allied to vitamin A was not clear until McCollum, Simmonds, Becker and Shipley,⁴ in 1922, produced conclusive evidence of the presence of a separate and distinct antirachitic vitamin which has since been designated as vitamin D. The most concentrated source of this vitamin is cod liver oil.

The curative action of ultraviolet rays from . . . [Full Text PDF of this Article]

Author Affiliations
TORONTO

From the Laboratories of the Sub-Department of Pediatrics, University of Toronto, and the Hospital for Sick Children.

Footnotes
Received for publication, Sept. 9, 1927.

This work was aided by a grant from the Department of Health of the Province of Ontario.

Read at the Fifth Annual Meeting of the Canadian Society for the Study of Diseases of Children, Toronto, June 13 and 14, 1927.

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