exportPattern("^[[:alpha:]]+")
import(survival)
importFrom("graphics", "abline", "lines", "plot", "points")
importFrom("stats", "binom.test", "cor", "dlnorm", "lm", "optim",
          "pchisq", "plnorm", "pnorm", "pt", "qbeta", "qnorm", "qt",
          "sd", "stepfun", "uniroot")
importFrom("utils", "read.csv", "read.table", "write.csv")
