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© VintageMedStock.com
Medical size: 6.9 Mpixels (19.7 MB uncompressed) - 2132x3226 pixels (7.1x10.8 in / 18.1x27.3 cm at 300 ppi)
Medical keywords: 1700's, 1800's, 18th century, 19th Century, air, alveoli, antique, breath, breathing, bronchi, bronchioles, copyright 1923, epiglotis, illustration, lung, Lungs, medical, pulmonary, respiration, respiratory, throat, trachea, vintage