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Title
Anatomy of alveoli in lungs #170902389
Description
Anatomy of alveoli in lungs, illustration. Microstructure of respiratory system, science, histology, organ, tract, medical, body, respiration, white, drawing, anatomical, normal, health, medicine, duct, education, scientific, educational, object, alveolus, isolated, air, breath, human, pulmonary, breathing, background