Follows the employees of airlines companies who have signed a contract with AZT, an illegal medication in many countries at this moment, fearing that it will be the only solution available for diagnosis.氧气面(😕)罩(不会)自动落下氧气面(♎)罩(不会)自(⬛)动落下氧气面罩(不会)自动(🚇)落下