1. Okada Y, Kiguchi T, Irisawa T, Yoshiya K, Yamada T, Hayakawa K, Noguchi K, Nishimura T, Ishibe T, Yagi Y, et al. Association between low pH and unfavorable neurological outcome among out-of-hospital cardiac arrest patients treated by extracorporeal CPR: a prospective observational cohort study in Japan. Journal of Intensive Care. 2020;8(1):34.
2. Jouffroy R, Vivien B: Association between low pH and unfavorable neurological outcome among out-of-hospital cardiac arrest patients treated by extracorporeal CPR: do not dismiss confounders! Journal of Intensive Care 2020, 8(1):42.
3. VanderWeele TJ, Ding P. Sensitivity analysis in observational research: introducing the E-value. Ann Intern Med. 2017;167(4):268–74.
4. Haneuse S, VanderWeele TJ, Arterburn D. Using the E-value to assess the potential effect of unmeasured confounding in observational studies. JAMA. 2019;321(6):602–3.
5. Iwami T, Nichol G, Hiraide A, Hayashi Y, Nishiuchi T, Kajino K, Morita H, Yukioka H, Ikeuchi H, Sugimoto H, et al. Continuous improvements in “Chain of Survival” increased survival after out-of-hospital cardiac arrests. Circulation. 2009;119(5):728–34.
6. Stiell IG, Wells GA, Field B, Spaite DW, Nesbitt LP, De Maio VJ, Nichol G, Cousineau D, Blackburn J, Munkley D, et al. Advanced cardiac life support in out-of-hospital cardiac arrest. New England Journal of Medicine. 2004;351(7):647–56.