Objective: To sum up clinical experience of 256 cases patients over 65-year-old with artificial heart valve replacement surgery.
目的：总结256例65岁以上患者行人工心脏瓣膜置换手术的临床经验。
Examples include: food found to contain botulinum toxin, food with undeclared allergens, a label mix-up on a lifesaving drug, or a defective artificial heart valve.
例如：含有肉毒杆菌毒素的食品，含有未申报的过敏原的食物，抢救用药标签混乱，或有缺陷的人工心脏瓣膜。
Objective To determine the surgical point and technique of artificial mechanical valve replacement in children with heart valve diseases.
目的：探讨儿童心脏瓣膜病的人工机械瓣膜置换手术要点及方法。
Objective To determine the surgical point and technique of artificial mechanical valve replacement in children with heart valve diseases.
目的：探讨儿童心脏瓣膜病的人工机械瓣膜置换手术要点及方法。
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