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'''Explanation:'''
 
'''Explanation:'''
 
The extremity leads were positioned wrongly in this example resulting in enlarged QRS complexes and incorrect ST representation. The extremity leads were placed proximally on the chest (figure 1 lead_5). Correct lead positioning resulted in figure 2 (ECG_lead_3). The error could be reproduced, compare figures 3 and 4 (ECG_lead_1 and ECGlead_2).
 
The extremity leads were positioned wrongly in this example resulting in enlarged QRS complexes and incorrect ST representation. The extremity leads were placed proximally on the chest (figure 1 lead_5). Correct lead positioning resulted in figure 2 (ECG_lead_3). The error could be reproduced, compare figures 3 and 4 (ECG_lead_1 and ECGlead_2).
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[[File:E000540.jpg|200px|Figure 1]]
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[[File:E000538.jpg|200px|Figure 2]]
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[[File:E000536.jpg|200px|Figure 3]]
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[[File:E000537.jpg|200px|Figure 4]]
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[[File:E000539.jpg|200px]]

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