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Fig. 1 | BMC Women's Health

Fig. 1

From: Rotating shift work and menstrual characteristics in a cohort of Chinese nurses

Fig. 1

Histogram about further changes (reduced or prolonged) of MCL of case group (n = 45) and control groups (shift-control group, n = 67; nonshift-control group, n = 30) in Part II after another 2 years’ follow-up in a proportion form. Significant differences on distribution of MCL fluctuation existed between the case group and each control group. * Significant differences

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