title: Pitching speed.
authors.affiliation: St Louis, Mo.
authors.forename: Rolf G
authors.initials: RG
authors.lastname: Behrents
mesh_terms: D000329:Advertising / Q000639:trends*; D006801:Humans; D009967:Orthodontic Appliances / Q000639:trends; D009971:Orthodontics, Corrective / Q000592:standards / Q000639:trends*; D011787:Quality of Health Care; D013997:Time Factors