Fig. 1: Timeline of experimental procedures.
From: Estradiol modulation of the renin–angiotensin system and the regulation of fear extinction
A timeline for Experiments 1–5 (a–e, respectively) shows each day of experimental manipulations. OVX ovariectomy, AT1R angiotensin II type 1 receptor, ↑ acute losartan treatment, gray shaded area = daily levonorgestrel (hormonal contraceptive/HC) treatment
