contrib                 Weights calculation
est.expDeath            Estimation of the expected number of deaths.
incidences              Incidences calculations.
inference.SMR           Inference about the standardized mortality
                        ratio (SMR) when evaltuating the effect of a
                        screening program on survival.
screening               A population of size 10,000 for a screening
                        program
var.expDeath            Variance estimation of the expected number of
                        deaths
