tokens: In a separate group of mice not subjected to behavioral studies , the same dose of NTG ( n = 3 ) and NTG + NIMO ( n = 3 ) caused mean arterial blood pressure to decrease from 85 . 9 + / - 3 . 8 mm Hg sem to 31 . 6 + / - 0 . 8 mm Hg sem and from 86 . 2 + / - 3 . 7 mm Hg sem to 32 . 6 + / - 0 . 2 mm Hg sem , respectively .