This 61 year-old woman was quite well before and had no systemic disease.She had habits of betal nut chewing and smoking for many years and had alcohol drinking socially.About two years ago,she noted a small non-tender ulcer over left buccal area and she did not pay any attention to it.However, the ulceration wound got<sep/>...
楊麗菁養生瑜珈，
你是專家嗎?