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Purpose : 2 TU of PPD RT23 has been substituted for 5 TU of PPD RT23 since 1998 in Korea without adequate evaluation. This study was undertaken to evaluate the tuberculin reactivity to 2 TU of PPD RT23 following intradermal BCG vaccination in neonates. The results were compared with the previous report generated with 5 TU of PPD RT23 in... |
