Park, S., Chung, J. S., Kim, S. H., Kim, Y. W., Ryu, H., & Kim, D. H. (2016). The safety and prognostic factors for mortality in extremely elderly patients undergoing an emergency operation. Surgery Today: Official Journal of the Japan Surgical Society, 46(2), 241-247. https://doi.org/10.1007/s00595-015-1147-x
Chicago-referens (17:e uppl.)Park, Seon-Young, Jae Sik Chung, Sung Hoon Kim, Young Wan Kim, Hoon Ryu, och Dong Hyun Kim. "The Safety and Prognostic Factors for Mortality in Extremely Elderly Patients Undergoing an Emergency Operation." Surgery Today: Official Journal of the Japan Surgical Society 46, no. 2 (2016): 241-247. https://doi.org/10.1007/s00595-015-1147-x.
MLA-referens (9:e uppl.)Park, Seon-Young, et al. "The Safety and Prognostic Factors for Mortality in Extremely Elderly Patients Undergoing an Emergency Operation." Surgery Today: Official Journal of the Japan Surgical Society, vol. 46, no. 2, 2016, pp. 241-247, https://doi.org/10.1007/s00595-015-1147-x.