!
! Time in weeks to discontinuation of use of an IUD (Multiload 250)
! used as an example by Collett D, Modelling survival data in medical research
!
01 1 x x f  10 y
02 1 x x f  13 n
03 1 x x f  18 n
04 1 x x f  19 y
05 1 x x f  23 n
06 1 x x f  30 y
07 1 x x f  36 y
08 1 x x f  38 n
09 1 x x f  54 n
10 1 x x f  56 n
11 1 x x f  59 y
12 1 x x f  75 y
13 1 x x f  93 y
14 1 x x f  97 y
15 1 x x f 104 n
16 1 x x f 107 y
17 1 x x f 107 n
18 1 x x f 107 n
! end-of-data
