Tsuchiya Y, Mishra K, Kapoor VK, Vishwakarma R, Behari A, Ikoma T, Asai T, Endoh K, Nakamura K. Plasma Helicobacter pylori Antibody Titers and Helicobacter pylori Infection Positivity Rates in Patients with Gallbladder Cancer or Cholelithiasis: a Hospital-Based Case-Control Study. Asian Pacific journal of cancer prevention : APJCP. 2018. 19. 7. 1911-1915
Yasuo Tsuchiya, Ernest Loza, Guido Villa-Gomez, Carlos C. Trujillo, Sergio Baez, Takao Asai, Toshikazu Ikoma, Kazuo Endoh, Kazutoshi Nakamura. Metagenomics of microbial communities in gallbladder bile from patients with gallbladder cancer or cholelithiasis. Asian Pacific Journal of Cancer Prevention. 2018. 19. 4. 961-967
Takao Asai, Claudia Còrdova Vidal, Wilma Strauss, Toshikazu Ikoma, Kazuo Endoh, Masaharu Yamamoto. Effect of Mass Stool Examination and Mass Treatment For Decreasing Intestinal Helminth and Protozoan Infection Rates in Bolivian Children: A Cross-Sectional Study. PLoS Neglected Tropical Diseases. 2016. 10. 12. e0005147