Funding for this research was provided by:
Kementerian Riset Teknologi Dan Pendidikan Tinggi Republik Indonesia (01/E/KPT/2017)
Japan Agency for Medical Research and Development (19fk0108043h0203)
Text and Data Mining valid from 2019-06-03
Received: 26 February 2019
Accepted: 29 May 2019
First Online: 3 June 2019
Ethics approval and consent to participate
: All the patients who participated in this research signed an informed consent form that clearly stated the purpose of the research, the method of sample collection, and the lack of risk from medical procedures. They also received an agreement form and resignation form. This research was granted ethical clearance approved by the Ethical Committee in Health Research Unit of Dr. Soetomo General Hospital Surabaya, Indonesia (no. 537/Panke. KKE/IX/2016).
: Not applicable.
: The authors declare that they have no competing interests.