Iram Amin, Shazia Rafique, Nadeem Ahmed, Muhammad Shahid, Samia Afzal, Tahir Rehman Samiullah, Mohsin Ahmed Khan and Muhammad Idrees, 2022. Bacterial Expression and Purification of Antigenic Recombinant Protein Encoded by Hepatitis Delta Virus Antigen of Pakistani Isolate. Pakistan J. Zool., 54: 2969-2972. DOI: https://dx.doi.org/10.17582/journal.pjz/20210712110746