Funding for this research was provided by:
Nursing & Midwifery School, Shahid Beheshti University of Medical Sciences
Text and Data Mining valid from 2018-12-01
Received: 9 May 2017
Accepted: 3 December 2018
First Online: 19 December 2018
Ethics approval and consent to participate
: This study was approved by the ethics committee of Shahid Beheshti University of Medical Sciences in Tehran, Iran (code: SBMU2.REC.1394.119). Written informed consent was obtained from all participants and they were assured that their names and information will remain confidential and their audio files are removed after data analysis.
: Not applicable.
: The authors declare that they have no competing interests.
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