References
- Almeling, R. (2006). ‘Why do you want to be a donor?’: gender and the production of altruism in egg and sperm donation. New Genetics and Society, 25, 143–157.
- Bossema, E.R., Janssens, P.M.W., Landwehr, F., Treucker, R.G.L., van Duinen, K., Nap, A.W., & Geenen, R. (2012). A taxonomy of possible reasons for and against sperm donation. Acta Obstetrica et Gynecologica Scandinavica, 92, 679–685.
- Clatworthy, J., Buick, D., Hankins, M., Weinman, J., & Horne, R. (2005). The use and reporting of cluster analysis in health psychology: a review. British Journal of Health Psychology, 10, 329–358.
- Cook, R. & Golombok, S. (1995). A survey of semen donation: phase II – the view of the donors. Human Reproduction, 10, 951–959.
- Daniels, K.R., Curson, R., & Lewis, G.M. (1996). Semen donor recruitment: a study of donors in two clinics. Human Reproduction, 11, 746–751.
- Ekerhovd, E., Faurskov, A., & Werner, C. (2008). Swedish sperm donors are driven by altruism, but shortage of sperm donors leads to reproductive travelling. Upsala Journal of Medical Sciences, 113, 305–313.
- Elliot, A.J. & Thrash, T.M. (2002). Approach-avoidance motivation in personality: approach and avoidance temperaments and goals. Journal of Personality and Social Psychology, 82, 804–818.
- Emond, M. & Scheib, J.E. (1998). Why not donate sperm? A study of potential donors. Evolution and Human Behavior, 19, 313–319.
- Ernst, E., Ingerslev, H.J., Schou, O., & Stoltenberg, M. (2007). Attitudes among sperm donors in 1992 and 2002: a Danish questionnaire survey. Acta Obstetrica et Gynecologica Scandinavica, 86, 327–333.
- Hamilton, M. (2010). Sperm donation in the United Kingdom in 2010. Human Fertility, 13, 257–262.
- Hammarberg, K., Carmichael, M., Tinney, L., & Mulder, A. (2008). Gamete donors’ and recipients’ evaluation of donor counselling: a prospective longitudinal study. Australian and New Zealand Journal of Obstetrics and Gynaecology, 48, 601–606.
- Janssens, P.M., Simons, A.H., van Kooij, R.J., Blokzijl, E., & Dunselman, G.A. (2006.) A new Dutch Law regulating provision of identifying information of donors to offspring: background, content and impact. Human Reproduction, 21, 852–856.
- Lalos, A., Daniels, K., Gottlieb, C., & Lalos, O. (2003). Recruitment and motivation of semen providers in Sweden. Human Reproduction, 18, 212–216.
- Lui, S.C. & Weaver, S.M. (1996). Attitudes and motives of semen donors and non-donors. Human Reproduction, 11, 2061–2066.
- Lui, S.C., Weaver, S.M., Robinson, J., Debono, M., Nieland, M., Killick, S.R., & Hay, D.M. (1995). A survey of semen donor attitudes. Human Reproduction, 10, 234–238.
- Nuytinck, A.J.M. (2008). Het omgangsrecht van de spermadonor op grond van diens nauwe persoonlijke betrekking met het kind [The visiting right of the sperm donor based on his close personal relationship with the child]. Ars Aequi, February 2008, 133–138.
- Pedersen, B., Nielsen, A.F., & Lauritsen, J.G. (1994). Psychosocial aspects of donor insemination. Sperm donors – their motivations and attitudes to artificial insemination. Acta Obstetrica et Gynecologica Scandinavica, 73, 701–705.
- Riggs, D.W. & Russell, L. (2011). Characteristics of men willing to act as sperm donors in the context of identity-release legislation. Human Reproduction, 26, 266–272.
- Ripper, M. (2008). Australian sperm donors: public image and provate motives of gay, bisexual and heterosexual donors. Health Sociology Review, 17, 313–325.
- Smits, D.J.M. & Boeck, P.D. (2006). From BIS/BAS to the Big Five. European Journal of Personality, 20, 255–270.
- Sydsjö, G., Lampic, C., Brändström, S., Gudmundsson, J., Karlström, P.-O., Solensten, N.G., et al. (2011). Who becomes a sperm donor: personality characteristics in a national sample of identifiable donors. British Journal of Obstetrics and Gynaecology, 119, 33–39.
- Thorn, P., Katzorke, T., & Daniels, K. (2008). Semen donors in Germany: a study exploring motivations and attitudes. Human Reproduction, 23, 2415–2420.
- Tomlinson, M.J., Pooley, K., Pierce, A., & Hopkisson, J.F. (2010). Sperm donor recruitment within an NHS fertility service since the removal of anonymity. Human Fertility, 13, 159–167.
- Trochim, W. (1989). An introduction to concept mapping for planning and evaluation. Evaluation and Program Planning, 12, 1–16.
- Van den Broeck, U., Vandermeeren, M., Vanderschueren, D., Enzlin, P., Demyttenaere, K., & D’Hooghe, T. (2013). A systematic review of sperm donors: demographic characteristics, attitudes, motives and experiences of the process of sperm donation. Human Reproduction Update, 19, 37–51.