tsüstiline fibroos tähendus null.

cystic fibrosis [cystic fibroses]▼◼◼◼noun
[UK: ˌsɪ.stɪk faɪ.ˈbrəʊ.sɪs ˌsɪ.stɪk faɪ.ˈbrəʊ.sɪs] [US: ˌsɪ.stɪk faɪˈbro.ʊ.sɪs ˌsɪ.stɪk faɪˈbro.ʊ.sɪs]