title: The many vs. the few.
authors.forename: Doris T
authors.initials: DT
authors.lastname: Zallen
mesh_terms: D003695:Delivery of Health Care / Q000191:economics*; D015276:Health Care Rationing; D006801:Humans; D019458:Insurance Coverage; D009965:Orphan Drug Production / Q000191:economics*; D035583:Rare Diseases / Q000188:drug therapy* / Q000191:economics*