Boonkawin, Natphimol, and Chanisa Chotipanich. “Determination radiation exposure rate at various distances and time for myocardial blood flow study using oxygen-15 water PET/CT imaging”. The Journal of Chulabhorn Royal Academy 5, no. 4 (October 1, 2023): 204–213. accessed September 18, 2026. https://he02.tci-thaijo.org/index.php/jcra/article/view/258704.