U.-E. E. Aihanuwa, K. R. O. Chukwujekwu, and C. F. Chukwuemeke, “Bone Morphogenetic Proteins an Update and Review: https://doi.org/10.26538/tjnpr/v1i1.2”, TJNPR, vol. 1, no. 1, pp. 1–11, Jul. 2017.