'Lost data' revisited.
Burke
F J Trevor
FJ
D003695:Delivery of Health Care / Q000145:classification / Q000706:statistics & numerical data; D003752:Dental Health Services / Q000145:classification / Q000706:statistics & numerical data; D006301:Health Services Needs and Demand / Q000706:statistics & numerical data; D006801:Humans; D013218:State Dentistry / Q000706:statistics & numerical data*; D006113:United Kingdom