Dr. Suhas Pankaj Singh, Dr. Yashodhara Rajesh Gotekar and Dr. Yasha Ravindra Shetty (2026) “A Study of A1 and A2 Subgroup in ABO Blood Group System in Blood Centre of Tertiary Care Hospital”, International Journal of Pharmacy Research & Technology (IJPRT), 16(1), pp. 785–791. Available at: https://www.ijprt.org/index.php/pub/article/view/1571 (Accessed: 28 February 2026).