Nguyen, T.L.T., Nguyen, T.M. and Ho, M.T. 2014. Sperm preparation and insemination on the clinical prengnacy rate of intrauterine insemination. Vietnam Journal of Obstetrics & Gynecology. 12, 4 (Nov. 2014), 44-47. DOI:https://doi.org/10.46755/vjog.2014.4.1002.