atr_i manually determined boundaries and peaks on lead i
atr_ii manually determined boundaries and peaks on on lead ii
atr_iii manually determined boundaries and peaks on on lead iii
atr_avr manually determined boundaries and peaks on on lead avr
atr_avl manually determined boundaries and peaks on on lead avl
atr_avf manually determined boundaries and peaks on on lead avf
atr_v1 manually determined boundaries and peaks on on lead v1
atr_v2 manually determined boundaries and peaks on on lead v2
atr_v3 manually determined boundaries and peaks on on lead v3
atr_v4 manually determined boundaries and peaks on on lead v4
atr_v5 manually determined boundaries and peaks on on lead v5
atr_v6 manually determined boundaries and peaks on on lead v6