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Dr. Harold Jeghers in his paper entitled "The Degree and Prevalence of Vitamin A Deficiency in Adults, with a Note on Its Experimental Production in Human Beings," in The Journal, September 4, page 760, erroneously included reference 18a. The paper to which this reference refers will not, Dr. Jeghers says, be published in the New England Journal of Medicine.
The Degree and Prevalence of Vitamin A Deficiency. JAMA. 1937;109(12):965. doi:10.1001/jama.1937.02780380049017