JOSE CALVO / SCIENCE PHOTO LIBRARY JOSE CALVO / SCIENCE PHOTO LIBRARY
Light micrograph of well-defined secondary lobes delimited by septa in the immature lung of a premature child. The alveoli contain fluid and there are deposits of organized fibrin in the bronchioles and alveolar ducts. Magnification: x90 when printed at 10 centimetres wide.
Model release not required. Property release not required.