Individual blocks will be created without stratified randomization by statistical software. And another person (rather than the doctor-researcher-patient) would do the randomization. Accordingly, patients will receive each treatment based on the randomized sequence.
Block sizes: 6
Actual list length: 90
block identifier, block size, sequence within block, treatment
1, 6, 1, Group B
1, 6, 2, Group A
1, 6, 3, Group C
1, 6, 4, Group A
1, 6, 5, Group C
1, 6, 6, Group B
2, 6, 1, Group B
2, 6, 2, Group A
2, 6, 3, Group C
2, 6, 4, Group C
2, 6, 5, Group B
2, 6, 6, Group A
3, 6, 1, Group B
3, 6, 2, Group C
3, 6, 3, Group C
3, 6, 4, Group A
3, 6, 5, Group B
3, 6, 6, Group A
4, 6, 1, Group A
4, 6, 2, Group C
4, 6, 3, Group A
4, 6, 4, Group B
4, 6, 5, Group C
4, 6, 6, Group B
5, 6, 1, Group C
5, 6, 2, Group C
5, 6, 3, Group B
5, 6, 4, Group B
5, 6, 5, Group A
5, 6, 6, Group A
6, 6, 1, Group A
6, 6, 2, Group C
6, 6, 3, Group C
6, 6, 4, Group B
6, 6, 5, Group A
6, 6, 6, Group B
7, 6, 1, Group C
7, 6, 2, Group A
7, 6, 3, Group A
7, 6, 4, Group B
7, 6, 5, Group C
7, 6, 6, Group B
8, 6, 1, Group A
8, 6, 2, Group A
8, 6, 3, Group C
8, 6, 4, Group B
8, 6, 5, Group B
8, 6, 6, Group C
9, 6, 1, Group B
9, 6, 2, Group C
9, 6, 3, Group A
9, 6, 4, Group A
9, 6, 5, Group B
9, 6, 6, Group C
10, 6, 1, Group A
10, 6, 2, Group A
10, 6, 3, Group B
10, 6, 4, Group C
10, 6, 5, Group C
10, 6, 6, Group B
11, 6, 1, Group A
11, 6, 2, Group B
11, 6, 3, Group C
11, 6, 4, Group A
11, 6, 5, Group B
11, 6, 6, Group C
12, 6, 1, Group A
12, 6, 2, Group C
12, 6, 3, Group A
12, 6, 4, Group B
12, 6, 5, Group B
12, 6, 6, Group C
13, 6, 1, Group A
13, 6, 2, Group B
13, 6, 3, Group A
13, 6, 4, Group C
13, 6, 5, Group B
13, 6, 6, Group C
14, 6, 1, Group B
14, 6, 2, Group B
14, 6, 3, Group A
14, 6, 4, Group C
14, 6, 5, Group A
14, 6, 6, Group C
15, 6, 1, Group C
15, 6, 2, Group B
15, 6, 3, Group A
15, 6, 4, Group B
15, 6, 5, Group C
15, 6, 6, Group A