20
Participants
Start Date
September 1, 2020
Primary Completion Date
February 1, 2021
Study Completion Date
May 1, 2021
The questionnaire survey
Questionnaires were issued and collected by 6 competent nurses with strict training, data entry by 2 researchers, statistical analysis by 1 researcher, and quality control by the other 2 researchers throughout the process.
Peking Yniversity Third Hospital, Beijing
Peking University Third Hospital
OTHER