Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 7 · column 5 of 6 · from the scan, no model involved

to increase the safety of these drugs. The most recent addition to the anti-tuberculosis drugs, Cycloserine, has not been in use long enough to evaluate its effectiveness. . ..
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