Databases put the direct in direct marketing.
Klitsch
J
J
DiMark Marketing, Langhorne, PA, USA.
D002017:Budgets; D003284:Contract Services / Q000706:statistics & numerical data; D003363:Cost Control / Q000379:methods; D003365:Costs and Cost Analysis; D016208:Databases, Factual / Q000706:statistics & numerical data*; D008389:Marketing of Health Services / Q000191:economics / Q000379:methods*; D010934:Planning Techniques; D014481:United States