1. Carsten, J. (2003). After kinship. (New Departures in Anthropology). Cambridge University Press. https://doi.org/10.1017/CBO9780511800382
2. Castro-Vázquez, G. (2017). Intimacy and reproduction in contemporary Japan/Genaro Castro-Vázquez (1st ed.). Routledge.
3. Finkler, K. (2001). The kin in the gene: The medicalization of family and kinship in American society. Current Anthropology, 42(2), 235–263. https://doi.org/10.1086/320004
4. Japan Society for Reproductive Medicine. (2020). Statement from the Japan Society for Reproductive Medicine (JSRM) on new coronavirus infection (COVID-19). http://www.jsrm.or.jp/announce/187.pdf
5. Japan Society of Obstetrics and Gynecology. (2014). Deletion of the word “marriage” in “opinions on in vitro fertilization and embryo transfer” and “opinions on the cryopreservation and transfer of human embryos and oocytes”. http://fa.kyorin.co.jp/jsog/readPDF.php?file=74/7/074070749.pdf#page=17