Mammary gland alveoli (IMAGE) Garvan Institute of Medical Research Caption Microscopy image of mammary gland alveoli during lactation Credit Dr David Gallego-Ortega Usage Restrictions Only for use with this story, must credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.