British pioneer?
Cohen
R A
RA
D000328:Adult; D002621:Chemistry / Q000266:history; D002648:Child; D003743:Dental Enamel / Q000737:chemistry; D003804:Dentin / Q000737:chemistry; D006665:History of Dentistry; D049671:History, 18th Century; D049672:History, 19th Century; D006801:Humans; D014070:Tooth / Q000737:chemistry*