Muhammed Akbar Agha, Nadeem Nusrat, Bippin Nipal, Zain-ui-Abdeen, Saima Minhas, Khaieeque-u.Nisa, Anna Rashid, Saddam Hussain Kaiwar. “ABO Discrepancies & Errors in A Routine Blood Bank”. Journal of Peoples University of Medical &Amp; Health Sciences Nawabshah. (JPUMHS), vol. 4, no. 1, Mar. 2014, pp. 33-38, http://publication.pumhs.edu.pk/index.php/ojs/article/view/129.