Mettman, Daniel Immunodeficiency-Associated Lymphoid Hyperplasia As a Cause of Intussusception in a Case of Activated PI3K-δ Syndrome. [electronic resource] - Frontiers in pediatrics 2017 - 71 p. digital Publication Type: Case Reports; Journal Article ISSN: 2296-2360 Standard No.: 10.3389/fped.2017.00071 doi