https://www.cochrane.org/zh-hans/evidence/CD001506_hypertonic-saline-salt-water-least-3-salt-nebulised-fine-mist-through-mask-or-mouthpiece-cystic
Hypertonic saline (salt water with at least 3% salt) nebulised as a fine mist through a mask or...
hypertonic salinesalt waterleastnebulisedfine