title: Catastrophic illness in an HMO.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004194:Disease / Q000191:economics*; D005249:Fees and Charges; D005260:Female; D006279:Health Maintenance Organizations / Q000191:economics* / Q000706:statistics & numerical data; D006306:Health Surveys; D006770:Hospitals, Group Practice / Q000706:statistics & numerical data; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007354:Insurance, Major Medical / Q000706:statistics & numerical data*; D008297:Male; D008875:Middle Aged; D009922:Oregon; D012959:Socioeconomic Factors