Author Correction: The U‑shaped association of serum iron level with disease severity in adult hospitalized patients with COVID‑19

oleh: Kentaro Tojo, Yoh Sugawara, Yasufumi Oi, Fumihiro Ogawa, Takuma Higurashi, Yukihiro Yoshimura, Nobuyuki Miyata, Hajime Hayami, Yoshikazu Yamaguchi, Yoko Ishikawa, Ichiro Takeuchi, Natsuo Tachikawa, Takahisa Goto