About the Authors

Iqbal Taufiqqurrachman

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Software, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliations Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu, Japan, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia

Andro Pramana Witarto

Roles Formal analysis, Methodology, Software, Visualization, Writing – original draft, Data curation

Affiliations Internal Medicine Specialist Study Program, Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia, Internal Medicine Specialist Study Program, Department of Internal Medicine, Dr. Soetomo General Academic Hospital, Surabaya, Indonesia,

Ari Fahrial Syam

Roles Conceptualization, Methodology, Supervision, Validation, Writing – review & editing

Affiliation Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Universitas Indonesia, Cipto Mangunkusumo General Hospital, Central Jakarta, Indonesia

Murdani Abdullah

Roles Investigation, Methodology, Supervision, Writing – original draft

Affiliations Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Universitas Indonesia, Cipto Mangunkusumo General Hospital, Central Jakarta, Indonesia, Human Cancer Research Center, Indonesian Medical and Research Education Institute, Faculty of Medicine, Universitas Indonesia, Jakarta,

Sigit Ari Saputro

Roles Methodology, Software, Writing – original draft, Writing – review & editing

Affiliations Department of Epidemiology, Biostatistics, Population and Health Promotion, Faculty of Public Health, Airlangga University, Surabaya, East Java, Indonesia, Center of Excellence for Patient Safety and Quality, Universitas Airlangga, Surabaya, East Java, Indonesia

Irine Normalina

Roles Methodology, Writing – original draft

Affiliation Helicobacter pylori and Microbiota Study Group, Institute Tropical Disease, Universitas Airlangga,

Muhammad Miftahussurur

Roles Methodology, Supervision, Writing – review & editing

yyamaoka@oita-u.ac.jp (YY); muhammad-m@fk.unair.ac.id (MM)

Affiliations Helicobacter pylori and Microbiota Study Group, Institute Tropical Disease, Universitas Airlangga,, Division of Gastroentero-Hepatology, Department of Internal Medicine, Faculty of Medicine-Dr. Soetomo Teaching Hospital, Surabaya, Indonesia

Yoshio Yamaoka

Roles Conceptualization, Funding acquisition, Resources, Validation, Writing – original draft, Writing – review & editing

yyamaoka@oita-u.ac.jp (YY); muhammad-m@fk.unair.ac.id (MM)

Affiliations Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu, Japan, Helicobacter pylori and Microbiota Study Group, Institute Tropical Disease, Universitas Airlangga,, Division of Genome-Wide Microbiology, Research Center for Global and Local Infectious Diseases (RCGLID), Oita University, Yufu, Oita, Japan

Competing Interests

The authors have declared that no competing interests exist.