Cost containment in clinical test development.
D001661:Biliary Tract Neoplasms / Q000191:economics* / Q000276:immunology; D002272:Carcinoembryonic Antigen / Q000032:analysis; D002624:Chemistry, Clinical / Q000379:methods*; D002766:Cholecystokinin; D003363:Cost Control; D006801:Humans; D012107:Research Design
D002272:Carcinoembryonic Antigen; D002766:Cholecystokinin