t_B provides the cumulative risk of
some genetic risk factor for developing disease B
in some target population as a function of age.
t_BA data frame (17 x 2).
age: age (in years).
crisk_B: cumulative risk of developing
some disease B in the target population.
plot_crisk plots cumulative risk curves.
Other datasets:
BRCA1_mam,
BRCA1_ova,
BRCA1,
BRCA2_mam,
BRCA2_ova,
BRCA2,
df_scenarios,
t_A,
t_I