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Table 1 Inclusion criteria of GJBNH study

From: Effects of Gyejibongnyeong-hwan on dysmenorrhea caused by blood stagnation: study protocol for a randomized controlled trial

Inclusion criteria
1. Female aged 18 to 35 years.
2. Women whose period cycle was 30 ± 3 days during last 3 months.
3. Women who have menstrual pain (dysmenorrhea) over 6 degrees by the Visual Analogue Scale (VAS) at screening.
4. Women who are diagnosed with blood stagnation by two oriental medical gynecologic specialists.
5. Have given a written informed consent form
6. Have given a written informed consent form for genetic study.