Aslam, P.K., Riyaz, A., Kumar, V.T.A. and Geeta, M.G. 2019. Hepatitis B in children with leukemia: the role of primary immunization. International Journal of Contemporary Pediatrics. 6, 3 (Apr. 2019), 1281–1284. DOI:https://doi.org/10.18203/2349-3291.ijcp20192028.