Gajjar, M.D., Darshan Adulkar, Nidhi Bhatnagar, Rajeshkumar Sonani, Tarak Patel, and Shweta Gupta. 2013. “Frequency Of ABO And Rh Blood Groups In Blood Donors: A Study From A Tertiary Care Teaching Hospital In India: ABO, Rh D, Antigens, Distribution”. National Journal of Integrated Research in Medicine 4 (4):69-73. http://nicpd.ac.in/ojs-/index.php/njirm/article/view/2209.