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AMA Am J Dis Child. 1950;80(4):566-577. doi:10.1001/archpedi.1950.04040020578005.
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THE GENERAL mechanism of the primary complex of pulmonary tuberculosis has been clearly understood by physicians for many years. Nevertheless many medical men, including pediatricians, have hazy and often incorrect ideas concerning its pathologic details and its clinical manifestations. The purpose of this investigation and presentation is to clarify some of the clinical and roentgen conceptions of the primary complex and coordinate them with already established anatomic and pathologic concepts.

PLAN OF THE INVESTIGATION  This investigation was carried out at St. Luke's Hospital. It is a routine procedure in the outpatient department to perform tuberculin tests, both with purified protein derivative and Vollmer patch tests, on patients 1 year of age or older. Each patient with a positive reaction is routinely observed in the following manner: the history is carefully taken, and physical examinations are then given at regular intervals; children with new lesions are examined monthly or bimonthly, and


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The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
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