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临床上窦性心动过缓比较常见。其病因是功能性或器质性所致,有时难以判定。为了明确病因,指导治疗,目前许多学者都在
Clinical sinus bradycardia is more common. The etiology is due to functional or organic, sometimes difficult to determine. In order to clarify the cause, guide the treatment, many scholars are present