Sent_en: 2ms The drug called PA-457, which is derived from betulinic acid and comes from by-products from paper manufacturers, is being manufactured and developed by Maryland drug manufacturer Panacos Pharmaceuticals.
Sent_yy: Ubat tersebut yang dipanggil PA-457, yang dihasilkan daripada asid betulinik dan datang daripada hasil sampingan perkilangan kertas, sedang diperbuat dan diperkembangkan oleh kilang perubatan Panacos Pharmaceutical di Maryland.