ซื้อampicillin 1 g powder for solution for injection, 1 vial (51.99.99.99 -539549),cloxacillin 1 g powder for solution for injection, 1 vial (51.99.99.99 -554401),ampicillin 500 mg powder for solution for injection, 1 vial (51.99.99.99 -840347) โดยวิธีตกลงราคา