Week	Group	Symptom, −	Symptom, +	Chi-square test p-value
1 - 3	Placebo	1016	34	0.001**
1 - 3	GK-1	885	60	0.001**
4 - 6	Placebo	954	96	0.654
4 - 6	GK-1	864	81	0.654
7 - 9	Placebo	993	57	0.149
7 - 9	GK-1	879	66	0.149
10 - 12	Placebo	975	66	0.008*
10 - 12	GK-1	904	35	0.008*