Development of the tracheal glands in man. Number, density, structure, shape, and distribution of mucous glands elucidated by quantitative studies of whole mounts.
D005088:Exocrine Glands; D005333:Fetus; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D009092:Mucous Membrane / Q000196:embryology*; D013194:Staining and Labeling; D014132:Trachea / Q000033:anatomy & histology* / Q000196:embryology*