Group

Number of rats

Residual urine volume (mL)

1 d post-surgery

7 d post-surgery

Model

15

2.02 ± 0.20

1.41 ± 0.07

EA

15

1.99 ± 0.15

1.14 ± 0.09^nnuu

EA control

15

2.00 ± 0.16

1.23 ± 0.06ⁿⁿ