in the perineal and perianal recordings the amplitudes of the evoked responses ( means +/- sd ) were 70 +/- 91.1 microv and 35.6 +/- 36 microv in the tpe patients , and 39.2 +/- 36.8 microv and 26 +/- 21.6 microv in the controls , respectively .
C0031066
perineal
C0442158
perianal