Colin Mackenzie's 5,000 receipts.
Geshwind
M
M
D006665:History of Dentistry; D049672:History, 19th Century; D009910:Oral Hygiene / Q000266:history; D010946:Plants, Medicinal; D011904:Rare Books; D014098:Toothache / Q000266:history; D014481:United States