Tiêu ch?y: Có th? ch? c?n s? d?ng thu?c trong th?i gian ng?n ?? ki?m soát tri?u ch?ng. C?n tham kh?o ý ki?n c?a bác s? ?i?u tr? tr??c khi quy?t ??nh ng?ng ?i?u tr? b?ng thu?c. The information supplied from the search engine results implies the effectivenes