External review of procedure codes for intensive care, mechanical ventilation and extracorporeal membrane oxygenation for critically ill COVID-19 patients in the Swedish inpatient register: A nationwide observational cohort study
对瑞典住院登记系统中重症监护、机械通气和体外膜肺氧合（ECMO）治疗COVID-19危重患者的程序代码进行外部审查：一项全国性观察性队列研究
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doi:10.1097/EA9.0000000000000071
Rosendal, Ebba; Kalucza, Sebastian; Nyström, Helena; Schien, Matthias; Berggren, Ritva Kiiski; Jerndal, Hanna; Fonseca-Rodriguez, Osvaldo; Fors Connolly, Anne-Marie
