Naming and classifying old and new ECG phenomena

See also pages [528][1], [529][2], [www.cmaj.ca/lookup/doi/10.1503/cmaj.150816][3] and [www.cmaj.ca/lookup/doi/10.1503/cmaj.150550][4] Two linked reports present cases of atypical electrocardiography (ECG) patterns that represent manifestations of severe narrowing or occlusion of the proximal left