Does age matter?
D000367:Age Factors; D000368:Aged; D004651:Employment / Q000706:statistics & numerical data; D006075:Governing Board / Q000458:organization & administration* / Q000706:statistics & numerical data; D019538:Health Care Surveys; D006801:Humans; D008875:Middle Aged; D012179:Retirement / Q000706:statistics & numerical data; D013997:Time Factors; D014341:Trustees / Q000145:classification / Q000706:statistics & numerical data*; D014481:United States