Based on the article "Online First: Cardiac Imaging Radiation Dose Disparities—Findings from 100+ Countries" published in JAMA, the research analyzed radiation doses for diagnostic imaging of coronary artery disease on a global scale. The study included data from more than 100 countries. The findings point to differences in radiation doses to which patients are exposed during cardiac imaging. The article also mentions topics such as climate change and health, specifically the effect of heat on pregnancy. Additional articles address gun mortality and equitable access to trauma care, as well as women's health and the birth rate in the US. JAMA also publishes articles on age-related macular degeneration and new guidelines for cervical cancer screening.