title: How many concierge physicians are there? Counting is quite tricky.
authors.affiliation: ScottMacStra@earthlink.net
authors.forename: Scott
authors.initials: S
authors.lastname: MacStravic
mesh_terms: D008511:Medicine; D010820:Physicians / Q000706:statistics & numerical data / Q000600:supply & distribution*; D013038:Specialization; D014481:United States