Close acquaintance with a particular family characterized by extensive pulmonary tuberculosis has long impressed me with the significance of the hereditary aspect of this disease. The possible importance of a hereditary factor in its propagation, it would seem, should receive more earnest attention than has yet been accorded to it by antituberculosis workers in this country. In an attempt to approach the problem from the genetic point of view I have secured the cooperation of a former student, Dr. Lewis Booker of the North Carolina Tuberculosis Sanatorium at Montrose, who has kindly undertaken the collection of pedigrees in that institution. To date, twelve such histories have been secured as fully as was possible or seemed practicable, but only three of these [Charts 1, 2 and 3] are sufficiently complete to warrant tentative deductions. In the remainder, great difficulty and uncertainty were experienced in attempting to get grandparental and collateral histories;
JORDAN HE. THE NEED FOR GENETIC STUDIES OF PULMONARY TUBERCULOSIS. JAMA. 1912;LIX(17):1518–1519. doi:10.1001/jama.1912.04270100286007
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