Wangroongsarb, P., Kamthalang, T., Jittaprasatsin, C., Suthivarakom, K., Cheunban, N., & Sangkitporn, S. (2014). The prevalence of C. difficile infection by culture method and typing toxin genes by multiplex polymerase chain reaction (mPCR). Journal of Associated Medical Sciences, 47(2), 97. retrieved from https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/59955