Hadadianpour, S., Tavana, S., Tavana, A. and Fallahian, M. (2019) “Immediate dilation of a tight or stenotic cervix by intra-procedural administration of hyoscine butylbromide: A clinical trial”, International Journal of Reproductive BioMedicine (IJRM), 17(4), pp. 253–260. doi: 10.18502/ijrm.v17i4.4550.