Bichhwaliya, A.K., Kumar, S., Choudhary, R. and Sharma, D. 2022. Microscopic study of age-related changes in germinal centre in the human appendix by using immunohistochemistry technique. International journal of health sciences. 6, S7 (Aug. 2022), 2002–2007. DOI:https://doi.org/10.53730/ijhs.v6nS7.11741.