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Plot of FIE values, FIE(D), for days of cycle, D, using the day-specific E2 levels (mean or median, 99%CI, 5–10th PCTL, and 90–95th PCTL limits) from Dighe et al. [18], Roos et al. [19], and Stricker et al. [20]. The formulation for FIE is detailed in Figure 1 and sign can be +, −, or indeterminate. Indeterminate FIE values cannot be plotted, only FIE values with + or − sign. Day 0 is day of peak serum LH.
