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1 Department of Pediatrics, Medical College of Virginia, Health Sciences Division, Virginia Commonwealth University, and the Child Chest Clinic, Medical College of Virginia Hospitals, Richmond, Va.
Three hundred teenagers, with history of earlier tuberculous infection treated with isoniazid, were questioned as to their smoking habits. Two hundred nineteen school children, in general of the same socioeconomic background and chosen as a random sample, constituted the control group. Knowledge of the existence of an earlier pulmonary infection, in this case tuberculosis, apparently did not serve as a deterrent to the acquisition of the smoking habit.
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