Micturition patterns in control and NMS groups at 15 days, 3 wk, 4 wk, and 5 wk of age. Number of the urine spots: large void (≥25 μl) (A) and small void (<25 μl) (B). Total voided volume (C). The volume per void in the large void spots (D). Open and closed bars represent control and NMS mice, respectively. Means ± SE, n = 50 per group. *P < 0.05, **P < 0.01, and †P < 0.001. NMS, neonatal maternal separation.