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 18 · column 3 of 5 · from the scan, no model involved

years, and annually after 50 years of age.
“Mammography isn’t the total answer,” said Dr. Daniel, “but it’s the best and only thing of its type available. Because breast cancer is so common, we need to be screening women, and this procedure lends itself to screening. In mammography all we’re looking for is cancer.”
95.3%