Linking the National Medical Expenditure Survey with the National Health Interview Survey. Analysis of field trials.
N A
NA
Mathiowetz
E P
EP
Ward
D000368:Aged; D003695:Delivery of Health Care / Q000191:economics*; D006801:Humans; D008875:Middle Aged; D009309:National Center for Health Statistics, U.S.; D012494:Sampling Studies; D011795:Surveys and Questionnaires; D014481:United States