00656nab a2200205 ib4500 D0001J000944 DOH 20231122164606.0 231122t ||||| |||| 00| 0 eng d Kyung-Bok Son Disease severity classification and COVID-19 ourcomes, Republic of Korea / By: Kyung-Bok Son [and two others] Bulletin of the World Health Organization 2021, 99(1) , 62-66 Patient Isolation Pneumonia, Viral epidemiology Republic of Korea epidemiology SARS-CoV-2 Severity of Illness Index Vital Signs JA 6271 6271 0 0 nlm 0 0 DOHCL DOHCL Periodical 2023-09-26 donation 0 Bull World Health Organ 99(1) 62 D0001J000944 2023-11-22 00:00:00 2023-09-26 JA