exportPattern("^[[:alpha:]]+")

import(survival)
import(ggplot2)
import(grid)
import(gridExtra)
import(aod)
import(proto)

S3method(summary, DTR)
S3method(print, DTR)
S3method(print, summary.DTR)
S3method(plot, DTR)

S3method(summary, CHR)
S3method(print, CHR)
S3method(print, summary.CHR)
S3method(plot, CHR)

