Ezebialu, I. U., Ezenyeaku, C. C., Umeobika, J. C., Ikeako, L. C., Ubboe, G. I., & Ojiyi, C. E. (2018). Perception of labour pain and desire for pain relief in labour among parturients in a tertiary health facility in south-eastern Nigeria. Orient Journal of Medicine, 30(1-2), 23–29. https://doi.org/10.4314/ojm.v30i1-2.