Srilar A, Choktanasiri W, Israngura Na Ayudhya N, Weerakiet S. The Retention of Accuracy of Visual Estimation of Blood Loss by Qualified Nurses at 1 and 3 Months following Education Program. Thai J Obstet Gynaecol [internet]. 2012 May 23 [cited 2026 Sep. 11];17(3):163-8. available from: https://he02.tci-thaijo.org/index.php/tjog/article/view/1620