b14 4 1000 60000 b14.dat 16 2/uV 12 0 -230 -10077 0 AECG1 b14.dat 16 2/uV 12 0 -166 -2234 0 AECG2 b14.dat 16 2/uV 12 0 -225 7999 0 AECG3 b14.dat 16 2/uV 12 0 -175 22639 0 AECG4