Cholin as one compound or coupled with amino acids, Natural vitamins in orally administered items; coupled with Salicylic acid, Benzalkonium, and so on. in topical products T?ng h?p Tra c?u b?nh Hi?u v? c? th? b?n Tim m?ch Ung b??u Mi?n d?ch - D? ?ng Tiêu hóa - Gan m?t Nhi Trung t&ac