Arroga, Arrogo, Arroto, Arroyo. Over a century of errors in dental bibliography.
Geshwind
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D001635:Bibliography of Medicine; D006665:History of Dentistry; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D011904:Rare Books / Q000266:history; D013030:Spain