Doraiswamy, S., Kumar, D., Sreeramulu, P. N., & ., S. (2019). Diagnosis of Helicobacter pylori in cholelithiasis and cholecystitis: by histology and serological association. International Surgery Journal, 6(11), 3986–3990. https://doi.org/10.18203/2349-2902.isj20195110