LBBB:

LVH (with repolarization abnormalities:

Ventricular pacemaker:

Anterior injury, seen in leads V1-4:

Inferior injury, seen in leads II, III, and aVF:

Acute pericarditis (Stage I):

Normal variant (early repolarization), seen in aVL, I, II, aVF, V4-6 (physiologic):

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