Leukemia Trial, Iron Deficiency Guidelines, and AI That Reads CT Scans

Today: a landmark pediatric leukemia trial, new global guidelines for diagnosing iron deficiency, a genetic clue reshaping lung cancer risk, a bold new framework for understanding Alzheimer's disease, an AI system that reads abdominal CT scans, and updated guidance for making vaccine shots less painful. Plus a quick rundown of several more studies in immunology, cardiology, and neuroscience.