Scientific evidence underlying the recommendations of critical care clinical practice guidelines: a lack of high level evidence

Affiliations

• ¹ Department of Emergency Medicine, Sir Run-Run Shaw Hospital, Zhejiang University School of Medicine, No 3, East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China. zh_zhang1984@zju.edu.cn.
• ² Department of Emergency Medicine, Sir Run-Run Shaw Hospital, Zhejiang University School of Medicine, No 3, East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China.