title: FTC advisory opinion instructive on market share analysis for physician networks.
authors.forename: K H
authors.initials: KH
authors.lastname: Roeder
mesh_terms: D016363:Antitrust Laws; D019058:Community Networks / Q000191:economics / Q000331:legislation & jurisprudence* / Q000458:organization & administration; D004465:Economic Competition; D006123:Group Practice / Q000331:legislation & jurisprudence; D006801:Humans; D007883:Legislation, Medical; D010414:Pennsylvania