Fig. 1. Intracavernosal pressure (ICP), ICP/mean arterial pressure (MAP) of each groups. (A) Representative ICP recordings in response to cavernous nerve stimulation. (B) ICP/MAP ratios after nerve stimulation of the different groups. DM, diabetes mellitus; ESWT, extracorporeal shock wave therapy; KH, Korean herbal formula. ICP: red line, MAP: blue line. Data are expressed as means±standard deviations. ^*Statistical significance in comparison with the DM+ESWT+KH-204 group. ^**Statistical significance in comparison with the DM group.