12-lead electrocardiogram: right atrial hypertrophy diphasic P wave in lead V1
12-lead electrocardiogram: right atrial hypertrophy diphasic p wave in lead v1
12-lead electrocardiogram: right atrial hypertrophy diphasic P wave in lead V1 (procedure)
12-lead electrocardiogram: right atrial hypertrophy diphasic p wave in lead v1 (procedure)