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Table 2 The three smears cross tabulations

From: The value of one versus three sputum smear examinations for diagnosis of pulmonary tuberculosis in Asella hospital, South-East Ethiopia

  Morning (+) Morning (−)
Spot 1 (+)/spot 2 (+) 598 1
Spot 1 (+)/spot 2 (−) 18 1
Spot 1 (−)/spot 2 (−) 2 6369
Spot 1 (−)/spot 2 (+) 20 3