1 ToolGen, Inc., #1204, Byucksan Digital Valley 6-cha, Seoul, South Korea.
2 Laboratory of Theriogenology, Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea.
3 School of Life Science, Handong Global University, Pohang, 37554, South Korea.
4 ToolGen, Inc., #1204, Byucksan Digital Valley 6-cha, Seoul, South Korea. jy.lee2@toolgen.com.