clinic had not been reported. Asch was defended by students, and colleagues, including Robert Edwards, who accused the media of convicting him before he was charged. The Orange County Registers investigations into these practices led to that paper's receiving the 1996 Pulitzer Prize for Investigative Reporting. In 2006, university officials admitted to the Los Angeles Times that they had not notified at least 20 women whose eggs were allegedly used by Asch and his colleagues. Aftermath Asch and colleagues Jose Balmaceda and Sergio Stone were indicted on charges of mail fraud and income tax evasion. Asch suspended his practice, sold his properties, and left for Mexico. Balmaceda escaped to Chile, while Stone stayed in the US and was convicted of insurance fraud in 1997 and paid a fine. In January 1996, Asch testified at a deposition in Tijuana that university employees were responsible for errors that had occurred such as mismatching patients and failing to obtain patient consents. Asch later opened a practice in Mexico and later in Argentina. He was formally fired by the university in 2000. He attained a Mexican citizenship in 2001 in addition to his native Argentine citizenship. Extradition efforts and acquittal In 2004 Asch was arrested in Buenos Aires. He was tried in Argentina and in 2008 was acquitted of all charges.<ref></ref</ref> Asch was arrested again in Mexico in November 2010. On December 30, 2010, the Mexican Attorney's General Office (PGR) announced on its website that it had initiated proceedings to have Asch extradited to the United States. However, Asch was released on bail in early 2011. Subsequently, the judge ruled that as Asch had already been tried in Argentina and acquitted, and as no new evidence was provided, the "double jeopardy" rule applied, thus Asch was free and would not be extradited to the United States. Research Asch worked with reproductive technology and pioneered gamete intrafallopian transfer (GIFT), a technique in which eggs are removed from a woman's ovaries, and placed in one of the Fallopian tubes, along with the man's sperm. He also worked on research linking marijuana and other drugs to hormone production, ovary function, and the effect on testicles in primates, and the possible negative effects of the usage of neuroactive drugs during adolescence and puberty. Asch worked with Andrew Schally understanding the effects of the Gonadotropin-releasing hormone (GnRH) in infertility and contraception in primates. In 1999 he worked on methods