Funding for this research was provided by:
Shanghai Pujiang Program (16PJC063)
Received: 8 January 2019
Accepted: 15 April 2019
First Online: 30 April 2019
Ethics approval and consent to participate
: According to Measures of the People’s Republic of China on the ethical review of Biomedical Research in People (Article 3) [CitationRef removed], this study aims to survey and clarify the opinions and views of the respondents on the reuse of SUDs, no ethical review is required.The details of the survey have been notified in writing on the beginning of the questionnaire. Continue to fill out and submit the questionnaire is defaulted to the respondent’s informed consent.
: Not applicable.
: All authors report no competing interest relevant to this study.
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