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 4 · column 4 of 9 · from the scan, no model involved

Constantly Changing
“They’re constantly changing drugs. They have on-going trials all the time at the university centers, experimental drugs, different combinations of drugs—it’s impossible for a family practitioner to keep up with it all.” Martin explained.
Medical journals carry page after page of cancer reports. The popular press, too, has discovered people want to read news about cancer on more than the obituary pages. No longer are research articles relegated to professional periodicals.
In March, Time Magazine published a cover story on interferon, the newest bright light on the cancer cure horizon. A natural substance
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