Fig. 2From: The menstrual cycle regularity and skin: irregular menstrual cycle affects skin physiological properties and skin bacterial microbiome in urban Chinese womenBacterial alpha diversity of the three groups. A Shannon index; B Sobs index; C Ace index; D Chao index. C1: Group with a regular menstrual cycle; C2: Group with a less regular menstrual cycle; C3: Group with an irregular menstrual cycleBack to article page