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Estimates of age, period, and cohort effects on the incidence of female breast cancer in the six burdensome countries from 1990 to 2019. (A) age effects; (B) period effects, with period 2000-2004 (median 2002) as reference period; (C) cohort effects, with cohort born in 1958-1962 (median 1960) as reference birth cohort.
