Accessibility and the demand for preventive care.
D001294:Attitude to Health; D002908:Chronic Disease; D003695:Delivery of Health Care; D004467:Economics; D004522:Educational Status; D006801:Humans; D007354:Insurance, Major Medical; D008396:Maryland; D010808:Physical Examination; D011314:Preventive Health Services / Q000706:statistics & numerical data*; D012525:Saskatchewan; D012737:Sex Factors; D014707:Vermont