id,inst,trt,fev,entry,fev.last,ivstart,ivstop
1,1,1,33.0,0,33.2,NA,NA
2,1,0,47.0,0,46.5,NA,NA
3,1,1,79.0,0,75.0,NA,NA
4,1,0,60.0,0,62.0,NA,NA
5,1,1,42.0,0,45.0,NA,NA
6,1,0,85.0,0,85.0,NA,NA
7,1,1,68.0,0,71.0,NA,NA
8,1,0,55.0,0,57.0,NA,NA
9,1,1,62.0,0,65.0,125,139
10,1,0,73.0,0,71.0,NA,NA
11,2,1,45.0,0,48.0,NA,NA
12,2,0,58.0,0,56.0,NA,NA
13,2,1,92.0,0,94.0,NA,NA
14,2,0,37.0,0,35.0,32,47
15,2,1,65.0,0,68.0,NA,NA
16,2,0,72.0,0,70.0,NA,NA
17,2,1,81.0,0,83.0,NA,NA
18,2,0,44.0,0,42.0,NA,NA
19,2,1,39.0,0,41.0,NA,NA
20,2,0,56.0,0,54.0,NA,NA
21,3,1,67.0,0,70.0,NA,NA
22,3,0,82.0,0,80.0,NA,NA
23,3,1,54.0,0,57.0,NA,NA
24,3,0,41.0,0,39.0,NA,NA
25,3,1,78.0,0,81.0,NA,NA
26,3,0,63.0,0,61.0,NA,NA
27,3,1,49.0,0,52.0,NA,NA
28,3,0,91.0,0,89.0,NA,NA
29,3,1,36.0,0,38.0,21,35
30,3,0,58.0,0,56.0,NA,NA
31,4,1,71.0,0,74.0,NA,NA
32,4,0,46.0,0,44.0,NA,NA
33,4,1,83.0,0,86.0,NA,NA
34,4,0,52.0,0,50.0,NA,NA
35,4,1,65.0,0,68.0,NA,NA
36,4,0,77.0,0,75.0,NA,NA
37,4,1,42.0,0,45.0,NA,NA
38,4,0,89.0,0,87.0,NA,NA
39,4,1,56.0,0,59.0,NA,NA
40,4,0,34.0,0,32.0,45,60