Dr. Chamberlen's anodyne teething necklaces.
Geshwind
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D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D010377:Pediatric Dentistry / Q000266:history*; D011482:Protective Devices / Q000266:history*; D011904:Rare Books; D014078:Tooth Eruption