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), 596. https://doi.org/10.53350/pjmhs22163596