Panyasai, S., R. Saning, L. Nooklieng, and H. Budiah. “Preliminary study of stability of blood used in the one tube osmotic fragility test to screen severe thalassemia carriers”. Journal of Associated Medical Sciences, vol. 41, no. 2, May 2008, p. 94, https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/60111.