"Sepsis--It ain't so much what you don't know that gets you into trouble, it's what you know for sure that just ain't so."--with apologies to Mark Twain.

MLA

Fein, I.Alan. “‘Sepsis--It Ain’t so Much What You Don’t Know That Gets You into Trouble, It’s What You Know for Sure That Just Ain’t so.’--with Apologies to Mark Twain.” Critical Care Medicine, vol. 39, no. 5, May 2011, pp. 1214–15. EBSCOhost, https://doi.org/10.1097/CCM.0b013e3182148c03.

APA

Fein, I. A. (2011). “Sepsis--It ain’t so much what you don’t know that gets you into trouble, it’s what you know for sure that just ain’t so.”--with apologies to Mark Twain. Critical Care Medicine, 39(5), 1214–1215. https://doi.org/10.1097/CCM.0b013e3182148c03

Chicago

Fein, I. Alan. 2011. “‘Sepsis--It Ain’t so Much What You Don’t Know That Gets You into Trouble, It’s What You Know for Sure That Just Ain’t so.’--with Apologies to Mark Twain.” Critical Care Medicine 39 (5): 1214–15. doi:10.1097/CCM.0b013e3182148c03.