Kang SS, Cho SR, Kim UH, Kim Y, Lee SD, Lee MS, Kim E, Won JI, Jin S, Kim HJ, Kim S, Jang SS, Lee S.  Pregnancy rate in Hanwoo cows after timed artificial insemination using different sperm concentrations.  Journal of Animal Reproduction and Biotechnology 2024;39:40-47.  
https://doi.org/10.12750/JARB.39.1.40