<style face="normal" font="default" size="100%">Evaluation of enzyme immunoassays using purified protein derivative (PPD) and its pooled fractions 3 and 4 for diagnosis of pulmonary tuberculosis.</style>

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0<style face="normal" font="default" size="100%">Evaluation of enzyme immunoassays using purified protein derivative (PPD) and its pooled fractions 3 and 4 for diagnosis of pulmonary tuberculosis.</style><style face="normal" font="default" size="100%">Evaluation of enzyme immunoassays using purified protein derivative (PPD) and its pooled fractions 3 and 4 for diagnosis of pulmonary tuberculosis.</style>