Funding for this research was provided by:
Indonesian Endowment Fund for Education (20160122045299)
Text and Data Mining valid from 2019-02-02
Received: 10 August 2018
Accepted: 13 January 2019
First Online: 2 February 2019
Ethics approval and consent to participation
: Ethical clearance for this study was provided by the Ethical Committee at the Faculty of Medicine of Universitas Indonesia–Cipto Mangunkusumo Hospital, Jakarta Indonesia (No. 416/UN2.F1/ETIK/VI/2016); and the Ethical Committee at Persahabatan Hospital, Jakarta, Indonesia (No. DL.01.03/II.3/3817/2016). Before their decision to sign the informed-consent form, patients were provided with written and oral explanations. We confirmed that all respondents had received written and oral explanations of the study, and that they had signed an informed consent form before the interview.
: Not applicable.
: The authors declare that they have no competing interests.