Serum potassium level on hospital arrival and survival after out-of-hospital cardiac arrest: The CRITICAL study in Osaka, Japan Haruka Shida, Tasuku Matsuyama, Taku Iwam,Satoe Okabayashi, Tomoki Yamada, Koichi Hayakawa, Kazuhisa Yoshiya, Taro Irisawa, Kazuo Noguchi, Tetsuro Nishimura, Toshifumi Uejima, Yoshiki Yagi, Takeyuki Kiguchi,Masafumi Kishimoto, Makoto Matsuura, Yasuyuki Hayashi,Taku Sogabe, Takaya Morooka, Junya Sado, Takefumi Kishimori1, Kosuke Kiyohara, Takeshi Shimazu,Tetsuhisa Kitamura and Takashi Kawamura https://journals.sagepub.com/doi/full/10.1177/2048872619848883