Cảnh giác dấu hiệu ngưng tim
TT - Sau khi thống kê trên 840 bệnh nhân trung niên từng trải qua biến cố ngưng tim, các nhà khoa học Mỹ rút ra kết luận có đến 50% bệnh nhân xuất hiện triệu chứng cảnh báo trong vòng một tuần trước lúc xảy ra biến cố.
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