Okpokam, D. et al. 2015. Sensitivity comparison between rapid one-step test strip and ELISA methods in detection of HBsAg among selected chronic liver disease patients in University of Calabar Teaching hospital, Calabar, Nigeria. Asian Journal of Medical Sciences. 6, 5 (Mar. 2015), 56–60. DOI:https://doi.org/10.3126/ajms.v6i5.11851.