@incollection{Khan19,
author = {Johra Khan},
title = {Molecular Variants for HBsAg: Surface and Subtype},
booktitle = {Hepatitis B and C},
publisher = {IntechOpen},
address = {Rijeka},
year = {2019},
editor = {Luis Rodrigo},
chapter = {1},
doi = {10.5772/intechopen.85282},
url = {https://doi.org/10.5772/intechopen.85282}
}