--- a
+++ b/ischemia_dataset/HR20721.hea
@@ -0,0 +1,19 @@
+HR20721 12 500 5000 04-Jun-2020 21:57:08
+HR20721.mat 16+24 200/mV 16 0 145 -20903 0 I
+HR20721.mat 16+24 200/mV 16 0 65 -21032 0 II
+HR20721.mat 16+24 200/mV 16 0 -80 -162 0 III
+HR20721.mat 16+24 200/mV 16 0 -105 21317 0 aVR
+HR20721.mat 16+24 200/mV 16 0 112 -9782 0 aVL
+HR20721.mat 16+24 200/mV 16 0 -7 -10124 0 aVF
+HR20721.mat 16+24 200/mV 16 0 70 1452 0 V1
+HR20721.mat 16+24 200/mV 16 0 320 3775 0 V2
+HR20721.mat 16+24 200/mV 16 0 480 -6372 0 V3
+HR20721.mat 16+24 200/mV 16 0 370 -7098 0 V4
+HR20721.mat 16+24 200/mV 16 0 160 -11045 0 V5
+HR20721.mat 16+24 200/mV 16 0 45 -8765 0 V6
+#Age: 59
+#Sex: Male
+#Dx: 164861001,164873001,164889003
+#Rx: Unknown
+#Hx: Unknown
+#Sx: Unknown