Tau ntau tshaj 20 xyoo, STMC tau cog lus los muab cov khoom lag luam zoo thiab cov kev pabcuam rau cov neeg siv khoom thoob ntiaj teb. Raws li cov coj ua lag luam ntawm cryogenic delashing tshuab peb tau xa ntau txhiab tus tshuab hauv ntau dua 30 txawv teb chaws. Ntxiv rau cov khoom lag luam zoo, peb tseem tso qhov tseem ceeb rau cov neeg siv khoom. Peb tau tsim tsa cov kev pab cuam tom qab muag khoom tom qab los xyuas cov lus teb rau cov neeg siv khoom thiab muab tag nrho cov kev txhawb nqa.
