Demographic information for females in the control and PMS groups.

PMS = premenstrual syndrome; MC = menstrual cycle; LP = luteal phase (1~3 days before menstruation); FP = follicular phase (1~3 days after menstruation). There were no significant differences in age, menophania, length of MC or phase of MC under testing for the females in the control and PMS groups.Demographic information for females in the control and PMS groups.