Tawfik, Gehad Mohamed http://orcid.org/0000-0003-3459-193X
Giang, Hoang Thi Nam http://orcid.org/0000-0002-8648-483X
Ghozy, Sherief http://orcid.org/0000-0001-5629-3023
Altibi, Ahmed M. http://orcid.org/0000-0001-7518-5415
Kandil, Hend http://orcid.org/0000-0003-2994-1835
Le, Huu-Hoai http://orcid.org/0000-0002-2018-1713
Eid, Peter Samuel http://orcid.org/0000-0002-8982-2822
Radwan, Ibrahim http://orcid.org/0000-0001-6669-4293
Makram, Omar Mohamed http://orcid.org/0000-0001-8361-9068
Hien, Tong Thi Thu http://orcid.org/0000-0002-4690-4625
Sherif, Mahmoud http://orcid.org/0000-0002-4408-2306
Hossain, As-Saba http://orcid.org/0000-0003-4295-1755
Thang, Tai Luu Lam http://orcid.org/0000-0003-1062-2463
Puljak, Livia http://orcid.org/0000-0002-8467-6061
Salem, Hosni http://orcid.org/0000-0002-4129-6683
Numair, Tarek http://orcid.org/0000-0001-5735-5134
Moji, Kazuhiko http://orcid.org/0000-0002-7543-1249
Huy, Nguyen Tien http://orcid.org/0000-0002-9543-9440
Article History
Received: 21 March 2020
Accepted: 3 August 2020
First Online: 25 August 2020
Ethics approval and consent to participate
: In our study, we performed no clinical intervention on human participants. A local ethics committee in Nagasaki University ruled that no formal ethics approval was required in this particular case, as we cannot identify each participant in our online survey (Supplementary Fig. InternalRef removed). A consent was obtained from the participants at the last sentence of the sent online cover letter of our questionnaire: “By completing and submitting this survey, you are indicating your consent to participate in the study. Your participation is appreciated.” Responses were only included in our analysis if participants gave a ‘yes’ response to the following question ‘Have you read information about the study given in the cover letter and agree to participate in this survey?’. Failure to obtain a consent has resulted in exclusion this participant.
: Not applicable.
: Livia Puljak is currently acting as an Editorial Board Member for BMC Medical Research Methodology. While the rest authors declare that they have no competing interests.