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Original Article
Comparative Reactivity of 2 TU and 5 TU PPD Skin Tests
Dae Sun Jo, Kyeong Mee Lee, Dae-Yeol Lee, Jung Soo Kim
Clin Exp Pediatr. 2000;43(5):638-643.   Published online May 15, 2000
Purpose : These days 5 TU purified protein derivative(PPD) is substituted with 2 TU PPD for the tuberculin skin test, a test essential in the diagnosis of tuberculosis in pediatric population. However, there had been no adequate criteria for the positivity of 2 TU PPD skin test. This study was performed to clarify the criteria of positive reactivity of 2...
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