Defining health and health care--a practical perspective.
D000368:Aged; D002170:Canada; D004782:Environmental Health; D006262:Health; D006291:Health Policy; D006301:Health Services Needs and Demand / Q000639:trends*; D006302:Health Services Research / Q000639:trends*; D006801:Humans; D008019:Life Style; D009017:Morbidity; D011157:Population Dynamics; D012922:Social Change; D012945:Social Values