Funding for this research was provided by:
Mazandaran University of Medical Sciences (3251)
Received: 20 March 2023
Accepted: 28 June 2023
First Online: 6 July 2023
: This study was directed in agreement with the Declaration of Helsinki. However, the patients or a close relative delivered a written informed consent form before sampling. Classifying information of each patient was kept secret. We received the clinical samples of patients without names from an endoscopy center affiliated to the Mazandaran University of Medical Sciences and performed the desired tests on these samples. Also, this study was approved by the Iran National Committee for Ethics in Biomedical Research with the national ethical code IR.MAZUMS.REC.1397.382.
: Not applicable.
: The authors declare no conflict of interest.