drug pre post
A 75 77
A 68 66
A 82 72
A 76 76
A 73 74
A 83 90
A 72 68
A 75 78
A 80 79
A 76 75
B 76 79
B 75 79
B 80 84
B 79 73
B 77 81
B 68 73
B 76 72
B 76 79
B 82 85
B 69 75
B 73 77
C 74 81
C 76 79
C 69 73
C 73 79
C 77 81
C 75 76
C 71 74
C 72 81
C 69 75