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Association of progesterone level with gestational age and maternal weight in 64 control women. (A) Raw progesterone levels in mass units in control women are shown on a logarithmic vertical axis with gestational age shown on the horizontal axis. (B) Progesterone MoM (adjusted for gestational age) in control women are shown on a logarithmic vertical axis with maternal weight shown on the horizontal axis. MoM, multiples of the median.
