Opoku-Okrah, C., Amidu, N. and Amoah-Sakyi, S. 2016. Detection of Weak D (Du) Phenotype among Rh-D Negative Males and Females in Kumasi, Ghana. Journal of Science and Technology. 28, 3 (Feb. 2016). DOI:https://doi.org/10.4314/just.v28i3.585.