• H? tr? t?ng kh? n?ng v?n ??ng ? ng??i b? b?nh x??ng kh?p ??c bi?t là b?nh ? c?t s?ng;Your browser isn’t supported any longer. Update it to get the best YouTube experience and our most up-to-date capabilities. Learn moreNg??i già: C?n tham kh?o ý ki?n c?a bác s? khi s? d?ng li?u l??ng cho ng??i trên 65 tu?i.H? tr? t?ng kh? n?ng v?n ??ng ?