Faheem Ud Din, Babar Ishaq, Talat Ramzan, Muhammad Shuaib, Tahreem Raza, Noor Khajjak 2022. Screening For Prior Exposure to Hepatitis B Virus Infection in Patients Undergoing Chemotherapy. Pakistan Journal of Medical & Health Sciences. 16, 03 (Apr. 2022), 596. DOI:https://doi.org/10.53350/pjmhs22163596.