text: Next, high-resolution segmentation of the MTL allowed us to 
  interrogate subcortical structures at a finer resolution, revealing non- 
  linear volumetric decreases in CA1 (*F*(2,15) = 5.84,*q*= 0.031,*R*2 
  adj = 0.36; 
  Fig. 3b, left) and CA2/CA3 (*F*(2,15) = 6.82,*q*= 0.027,*R*2 
  adj = 0.41; Fig. 3b, 
  middle) across gestation. PHC exhibited linear volumetric decreases 
  across gestation (*F*(1,16) = 24.87,*q*< 0.001,*R*2 
  adj = 0.58; Fig. 3b, right) 
  which was also tied to estradiol (*F*(1,12) = 20.21,*q*= 0.005,*R*2 
  adj = 0.60). 
  All three relationships remained significant after proportional correc- 
  tion for total GMV. There was no significant change in other subregions 
  or total volume of the hippocampal body, or in the parahippocampal 
  gyrus (Supplementary Table 7 and Supplementary Fig. 8). 