Kev tsis pom zoo tuaj yeem txhawb nqa txhua yam zaub rau cov khoom siv sib txawv, cov khoom siv ua kom zoo nkauj, tsis zoo rau cov tshuab ua pa tawm, lub siab ua pa tawm rau cov neeg kho mob vietilator uas tuaj yeem haum rau koj cov ntawv thov. Peb nyob ntawm no los pab txhawb nqa kom muab cov khoom siv kho mob.
