Khandelia, R., and M. Saikia. “Histopathologic Spectrum of Upper Gastrointestinal Tract Mucosal Biopsies: A Prospective Study”. International Journal of Medical Science and Clinical Invention, vol. 4, no. 11, Nov. 2017, pp. 3314-6, doi:10.18535/ijmsci/v4i11.11.