“Compared with PCB alone, priming PCB blockade with DTC reduced the time to 50 per cent blockade to 71 ±4.5 s (p< 0.02) and to 90 per cent blockade to 111 ±8 s(p< 0.05).”
“Priming a DTC blockade with either DTC or PCB or priming a PCB blockade with PCB produced an acceleration of less than 10 s at all levels of blockade.”