Physician referral. Ad blitz for a new service.
D000329:Advertising / Q000379:methods*; D004181:Directories as Topic; D005260:Female; D006745:Hospital Bed Capacity, 300 to 499; D006761:Hospitals / Q000706:statistics & numerical data*; D006801:Humans; D008404:Massachusetts; D010820:Physicians; D012017:Referral and Consultation / Q000639:trends*