Nadeem Nusrat, Bippin Nepal, Saddam Hussain, Zaen Pahore, Akbar Agha, Saima Minhas. (2015). Non-Secretor "A" Subgroup with Acquired B Antigen, Naturally & Acquired Immune Anti-A1 Antibodies in a Patient with Carcinoma of Esophagus. Journal of Peoples University of Medical &Amp; Health Sciences Nawabshah. (JPUMHS), 5(1), 52–55. Retrieved from http://publication.pumhs.edu.pk/index.php/ojs/article/view/182