• 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 more. Update it to find the finest YouTube practical experience and our most current features. Learn more?? viên kh?p V??ng Ho?t phát huy hi?u qu? mong ??i, ng??i b?nh nên s? d?ng theo h??ng d?n sau:Thông th??ng, viên x?