Licence: Attribution 4.0 International (CC BY 4.0)
Credit: SEM bronchus,goblet cell hyperplasia,3D,LH. David Gregory & Debbie Marshall. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: SEM bronchus,goblet cell hyperplasia,3D,LH. David Gregory & Debbie Marshall. Source: Wellcome Collection.