text: In contrast, GMV within regions of the default mode (subnetwork 
  C), limbic (subnetworks A and B) and visual peripheral networks buck 
  the global trend by slightly increasing (for example, temporal poles), 
  remaining constant (for example, orbitofrontal cortex) or reducing at 
  a much slower rate (for example, extrastriate cortex) than total GMV 
  (Fig. 2a,b and Supplementary Tables 1 and 2). CT changes in these 
  regions exhibit similar patterns (Supplementary Fig. 3 and Supple- 
  mentary Tables 4 and 5). 
  
  **Results**
  **Serological evaluations**
  Serological evaluations captured canonical hormone fluctuations 
  characteristic of the prenatal, perinatal and postnatal periods (Fig. 1b). 
  Serum hormone concentrations increased significantly over the course 
  of pregnancy and dropped precipitously postpartum (preconcep- 
  tion, estradiol (E) = 3.42 pg ml−1 and progesterone (P) = 0.84 ng ml−1; 
  3 weeks preparturition, E = 12,400 pg ml−1 and P = 103 ng ml−1; 3 months 
  postparturition, E = 11.50 pg ml−1 and P = 0.04 ng ml−1). 