FOS and hypertensive disorder: Representative digital images of OXT‐mRFP1‐positive neurons (Figure 3A, B‐a, d, g, j), Fos‐IR expression (Figure 3A, B‐b, e, h, k), and composite pictures (Figure 3A, B‐c, f, i, l) in the PVN (Figure 3A) and SON (Figure 3B) in untreated (Figure 3A, B‐a‐c), saline‐administered (Figure 3A, B‐d‐f), HTN‐administered (Figure 3A, B‐g‐i), and PEG‐administered (Figure 3A, B‐j‐l) rats at 3 hr after treatment are shown.