lung membrane, mucus, goblet, cellular, cell, microbe, pen and ink, ink, line, simple, clean, manuscript, figure, graphic, cells, membrane, epithelial, mucus, bronchi, trachea, bronchus, respiratory, respiration, journal, paper
Keywords: Black & White, Cartoon, Line, Publishing, Research, Allergy / Immunology, Cell biology / Histology, Molecular Biology, Respiratory, Pathology
© Mesa Schumacher