title: Competing for professional control: professional mix in the eyeglass industry.
authors.forename: A R
authors.initials: AR
authors.lastname: Maurizi
authors.forename: R L
authors.initials: RL
authors.lastname: Moore
authors.forename: L
authors.initials: L
authors.lastname: Shepard
mesh_terms: D049711:History, Modern 1601-; D009885:Ophthalmology / Q000266:history*; D014481:United States