在瓣膜治疗领域，中国有数千万患者，每年达到手术指征的约1000万人，但实际治疗率不足5%。以往只有外科手术，全国每年约9万台。介入瓣膜技术去年才做了约1.8万例，而美国是14万例。在印尼等国家，甚至尚未普遍开展瓣膜疾病的筛查与手术，很多患者至死都不明病因。
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During my testing, I was impressed to find that a firmer mattress really did lead to big improvements in my back pain. I expected a harder surface to cause flare-ups of pain or to even throw my back out of place, which has happened on cheap, hard mattresses before. However, I slept well and woke up without any aches or soreness. While a softer sleep surface was my go-to since I’m a side sleeper, choosing a firmer style of mattress immediately supported my spine better and kept pain away, rather than flaring it up like I assumed.
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