Ohn, May Honey, Jun Rong Ng, Ng Pey Luen, and Khin Maung Ohn. 2022. “Calcium Rim Sign in Plain Abdominal Radiograph: An Underrated Alert for Unstable Abdominal Aortic Aneurysm”. Surgery Insights, September. https://doi.org/10.55085/si.2022.684.