Kiridi, E.K., Oriji, P.C., Ubom, A.E., Ugwoegbu, J.U., Ojanerohan, A.A., Abasi, I.J., Panebi, B. and Daniel, A.A. 2022. Effect of addition of antispasmodic to local and systemic analgesics on pain perception during hysterosalpingography: a randomized controlled trial. International Journal of Clinical Trials. 9, 4 (Oct. 2022), 243–250. DOI:https://doi.org/10.18203/2349-3259.ijct20222687.