b88 4 1000 60000 b88.dat 16 2/uV 12 0 36 5275 0 AECG1 b88.dat 16 2/uV 12 0 57 -15441 0 AECG2 b88.dat 16 2/uV 12 0 60 18367 0 AECG3 b88.dat 16 2/uV 12 0 54 262 0 AECG4