ซื้อhydroxypropyl methylcellulose 3 mg/1 mL eye drops, solution (invalid), 10 mL bottle (51.99.99.99 -700136),calcium carbonate 835 mg capsule, hard, 1 capsule (51.99.99.99 -698113),timolol 500 mg/100 mL eye drops, solution, 5 mL bottle (51.99.99.99 -522696) โดยวิธีตกลงราคา