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. 2017 Jan;108(1):70–73. doi: 10.5935/abc.20170006

Figure 1.

Figure 1

Recording of clinical history. A) wide QRS tachycardia at age 4; B) sinus pauses; C) electrocardiogram of the proband in right upper precorial leads after 3 years of follow-up, at age 8; D) electrocardiogram in right upper precorial leads: ajmaline challenge (mother). E) electrocardiogram in standard leads: ajmaline challenge (father).