- V1 4th Intercostal space to the right of the sternum
- V2 4th Intercostal space to the left of the sternum
- V4 5th Intercostal space at the midclavicular line
- V3 Directly between V2 & V4
- V6 5th Intercostal space, left anterior axillary line
- V5 Directly between V4 & V6
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