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JAMA. 1931;97(19):1390-1392. doi:10.1001/jama.1931.02730190046016.
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Hess, A. F.: Rickets, Osteomalacia and Tetany , Philadelphia, Lea & Febiger, 1929.
Blunt, K., and Cowan, R.: Ultraviolet Light and Vitamin D in Nutrition , University of Chicago Press, 1930.
 Colorado Sunshine, editorial , J. A. M. A. 96: 1088 ( (March 28) ) 1931.
Link to Article[[XSLOpenURL/10.1001/jama.1931.02720390098010]]
Lewis, R. C.; Frumess, G. M., and Stein, H. B.:  A Comparison of the Antirachitic Effects of Winter and of Summer Sunshine in Colorado , Am. J. Dis. Child. 41: 7 ( (Jan.) ) 1931.
Tisdall, F. F., and Brown, Alan:  Relation of the Altitude of the Sun to Its Antirachitic Effect , J. A. M. A. 92: 860 ( (March 16) ) 1929.
Link to Article[[XSLOpenURL/10.1001/jama.1929.02700370008002]]
Tisdall, F. F., and Brown, Alan:  A Note on the Seasonal Variation in the Antirachitic Effect of Sunshine , Am. J. Dis. Child. , to be published.
Useful Drugs , ed. 8, Chicago, American Medical Association, 1930.
Hackett, Helen:  The Effect of Coffee on the Basal Metabolism of Young Women , J. Home Economics 23: 769 ( (Aug.) ) 1931.
 The International University: College of Medicine and Surgery , New England J. Med. 205: 736 ( (Oct. 8) ) 1931.

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