Vol. 5 No. 01A (2024)

Khem Tith^1,2, Sodara Chan¹, Pichenda Koeut^1,3 Rithy Yoeung²

^{1- School of Public Health at the National Institute of Public Health}

^{2- Cambodia-China Friendship Hospital}

^{3- Payment Certification Agency (PCA), Cambodia}

^{* Corresponce: Khem Tith, Email:  khemtith77@ gmail.com}