subject treatment t1 t2 t3 t4
1 bt 1.5 9.0 5.0 4.0
2 bt 5 14 4.5 7
3 bt 1 8 4.5 2.5
4 bt 5 14 8 5
5 bt 3 8 4 4
6 bt 0.5 3.5 1.3 1
7 bt 0.5 3 1 0
8 ro 2 5 5 1.5
9 ro 1.5 1.9 1.5 1.0
10 ro 3.5 7 8 4
11 ro 1.5 4.2 2 1.5
12 ro 1.5 3.6 2 1
13 ro 1.5 2.5 2.8 4
14 ro 1.5 2.4 0.5 0.0
15 ctrl 3 3.1 0.5 2
16 ctrl 5 4.3 3.5 4.0
17 ctrl 1.5 0.8 1.3 3
18 ctrl 2 2.6 1.5 2
19 ctrl 6 3.5 4 3
20 ctrl 1 1 0.3 0
21 ctrl 0 0.3 0.3 1