Các sản phẩm phục vụ nhu cầu sức khỏe của dân số. According to WHO, these products should be available “at all times,in adequate amounts in the appropriate dosage forms, with assured quality and adequate information, and at a price the individual and the community can afford”. Các sản phẩm phục vụ nhu cầu sức khỏe của dân số. According to WHO, these products should be available “at all times,in adequate amounts in the appropriate dosage forms, with assured quality and adequate information, and at a price the individual and the community can afford”.