Buried in the National Library of Medicine's collection of more than 17 million items are some pretty amazing, largely unseen objects from around the world. The mesmerizing new book Hidden Treasure is filled with images of these objects that are beautiful, enlightening or disturbing, and sometimes all three. The highlights include Hitler's medical records, detailed graphic depictions of early-20th-century surgical techniques, a Russian book of clinical dermatology from 1887, and a report…
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