We use internet advertising to promote our mission and assistance constituents obtain our companies. Marketing and advertising pixels assistance us evaluate the results of our campaigns. General performanceB?nh lây truy?n qua ???ng hô h?p, ch? y?u qua gi?t b?n hô h?p ho?c qua ti?p xúc v?i các b? m?t b? nhi?m virus.  Cúm A lây lan t??ng ??i