Remembering early roots.
Kuhfeld
A W
AW
D003731:Dental Caries / Q000175:diagnosis / Q000266:history; D003791:Dental Pulp Test / Q000266:history*; D004558:Electric Stimulation; D004568:Electrodiagnosis / Q000266:history; D049672:History, 19th Century; D006801:Humans