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. 1998 Sep 1;95(18):11002–11007. doi: 10.1073/pnas.95.18.11002

Figure 2.

Figure 2

Results show serum progesterone concentrations (means ± 1 SEM) in GnRH antagonist-treated monkeys that received continuous infusions of recombinant cynomolgus LH (Upper) or hCG (Lower) as described in Materials and Methods. The duration of each gonadotropin treatment is shown by the shaded rectangles. The dark shaded areas encompass the means ± 1 SEM of serum progesterone levels during luteal phases of three control monkeys and the light shaded areas encompass the means ± 1 SEM of serum progesterone levels during luteal phases of three pregnant monkeys.