Nichawan Wirachpisit และ Chidchanok Choovongkomol; Rojnarin Komonhirun; Pensiri Poomhirun; Wichai Ittichaikulthol. (2018) Incidence, Risk Factors, and Complications Associated With In-Hospital Mortality in Emergency Surgery at Ramathibodi Hospital: A Retrospective Study. <i>Ramathibodi Medical Journal</i>, <i>41</i>(2), 067-077.Nichawan Wirachpisit และ Chidchanok Choovongkomol; Rojnarin Komonhirun; Pensiri Poomhirun; Wichai Ittichaikulthol. "Incidence, Risk Factors, and Complications Associated With In-Hospital Mortality in Emergency Surgery at Ramathibodi Hospital: A Retrospective Study". Ramathibodi Medical Journal 41 (2018):067-077.Nichawan Wirachpisit และ Chidchanok Choovongkomol; Rojnarin Komonhirun; Pensiri Poomhirun; Wichai Ittichaikulthol. Incidence, Risk Factors, and Complications Associated With In-Hospital Mortality in Emergency Surgery at Ramathibodi Hospital: A Retrospective Study. Faculty of Medicine Ramathibodi Hospital, Mahidol University:ม.ป.ท. 2018.