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. 2018 Apr 24;99(1):175–195. doi: 10.1093/biolre/ioy093

Figure 5.

Figure 5.

Superimplantation rats produced by three different methods: (A) Canivenc and Mayer produced by local injection of progesterone in the uterine wall [207]; (B) Psychoyos produced by repeated systemic injection of a threshold dose of estradiol [208]; (C) Yoshinaga produced by a local fat pad injection of progesterone or estrogen [209].