Afroz, T., and A. J. Mohammed Saleh. “Prevalence of A2 and A2B Subgroups and Anti-A1 Antibody in Blood Donors at Tertiary Care Center in Bangladesh: A Cross Sectional Study”. Pulse, vol. 16, no. 1, Oct. 2024, pp. 10-14, doi:10.3126/pulse.v16i1.77064.