About the Authors

Qingna Song

Roles Writing – original draft

Affiliation Department of Intensive Care Unit, The Affilated Hospital of Qingdao University, Qingdao, China

Hongyan Zhang

Roles Conceptualization

Affiliation Department of Nursing Department, The Affilated Hospital of QingDao University, Qingdao, China

Yuan Su

Roles Data curation, Project administration

Affiliation Department of Intensive Care Unit, The Affilated Hospital of Qingdao University, Qingdao, China

Jukun Song

Roles Conceptualization, Formal analysis

songjukun@163.com

Affiliation Department of Oral and MaxillofIcial Surgery, The Affiliated Stomatological Hospital of Guizhou Medical University, Guiyang, China

Competing Interests

The authors declare that they have no competing interests.