title: Physician referrals in a competitive environment.
authors.forename: L M
authors.initials: LM
authors.lastname: Markman
authors.forename: B Z
authors.initials: BZ
authors.lastname: Paulshock
mesh_terms: D003691:Delaware; D005194:Family Practice; D005251:Fees, Medical; D006279:Health Maintenance Organizations; D012017:Referral and Consultation