AL-Janabi, M. H. . . . . . . . . . ., Al-Ahmed, H. I. and Thabit, Z. A. (2018) “The effect of cell-free supernatant (CFS) of Escherichia coli on human sperm motility”, Journal of Biotechnology Research Center, 12(2), pp. 32–35. doi: 10.24126/jobrc.2018.12.2.535.