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Comparison of the timing of vaginal opening (VO) of the short-term and long-term groups. The cumulative percent of animals with VO is displayed per age (days). The G-ST and G-LT have a lower percentage of animals with VO at later ages. The C-ST and C-LT groups reached 100% VO by day 33. Five animals in the G-ST group did not have a vaginal opening by sacrifice (day 42).
