Adlekha, S., Chadha, T., Krishnan, P., & Sumangala, B. (2014). Prevalence of <i>Helicobacter Pylori</i> Infection Among Patients Undergoing Upper Gastrointestinal Endoscopy in a Medical College Hospital in Kerala, India. Annals of Medical and Health Sciences Research, 3(4), 559–563. https://doi.org/10.4103/2141-9248.122109