title: 19th century dentistry advertising trade cards. Merrick's Six Cord Thread/Clark's Mile End Thread.
authors.forename: Theodore
authors.initials: T
authors.lastname: Croll
authors.forename: Ben Z
authors.initials: BZ
authors.lastname: Swanson
mesh_terms: D000329:Advertising / Q000266:history*; D049672:History, 19th Century; D011215:Practice Management, Dental / Q000266:history*; D014081:Tooth Extraction / Q000266:history*; D014481:United States