Time between pairs of leukemia cases.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003237:Connecticut; D005163:Factor Analysis, Statistical; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007938:Leukemia / Q000453:epidemiology*; D008875:Middle Aged; D012423:Rural Health; D013997:Time Factors; D014507:Urbanization