As of January 2006, he is serving as a deputy director and head of Cellular Reprogramming Laboratory, Centro de Investigación Príncipe Felipe, Valencia, Spain.

[1][2] According to TIME magazine, Stojković has attempted to create human embryos by injecting a patient's own DNA into an ovum with the genetic material removed.

[1] On the German TV show "Menschen bei Maischberger" (June 2006), he claimed that stem cell therapy would allow paraplegic patients to walk in three years.

In January 2001, he co-founded the European College for Animal Reproduction (ECAR) and served as a scientific adviser to Therapeutic Human Polyclonals in Tucson, USA and Agrobiogen GmbH in Laretzhausen, Germany.

Later in the year, he became chair in embryology and stem cell biology at the University of Newcastle, and in 2006, deputy director and head of the Cellular Reprogramming Laboratory at the Centro de Investigación Príncipe Felipe in Valencia, Spain.