Prior to the success of the Swedish team, two other European/Asian medical research groups have attempted deceased donor uterus transplantation. The first resulted in organ failure from unclear pathology. The second was a successful transplant, but failed to yield a childbirth due to multiple miscarriages. In 2004 however, the team from the Sahlgrenska Institute in Gothenburg instituted a rigorous research undertaking in order to study the phenomenon and to obtain a childbirth. Using established immunological knowledge, and practical experience using animal models, the investigators were able over a course of a decade, to start an active transplant program.