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Table 1 Regularity of the post-exposure cycle relative to estrous stage at exposure

From: Airway exposure to multi-walled carbon nanotubes disrupts the female reproductive cycle without affecting pregnancy outcomes in mice

  Post-exposure cycle
Number of animals with
Estrous stage at exposurea   Regular Irregular
 Diestrous Control 3 1
Exposed 1 1
 Proestrous Control 2 0
Exposed 1 0
 Estrous* Control 5 0
Exposed 2 5
 Metestrous Control 4 2
Exposed 6 3
  1. aIncluding only regularly cycling animals during the pre-exposure cycles
  2. *p = 0.027, Fisher's exact test (p = 0.026 when proestreous and estrous were pooled)