People over age 100:  fewer than we think.
D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000569:Americas; D003625:Data Collection; D003710:Demography; D019049:Developed Countries; D009656:North America; D011153:Population; D011154:Population Characteristics; D012106:Research; D012107:Research Design; D014481:United States
Adult; Age Factors; Age Reporting; Aged; Aged, 80 And Over; Americas; Data Collection; Data Reporting; Demographic Factors; Developed Countries; Error Sources; Measurement; North America; Northern America; Population; Population Characteristics; Research Methodology; United States