Park Jong-sei
Park Jong-sei (born 1943), also spelled Park Jong-se, is a South Korean chemistry researcher and former government official. He rose to worldwide notice during the 1988 Summer Olympics in Seoul for his role in detecting Ben Johnson's steroid use. He was later the head of South Korea's Food and Drug Administration (now the Ministry of Food and Drug Safety) under President Kim Dae-jung from March 1998 until January 1999, and founded protein microarray development start-up Lab Frontier in 2002. Early career A graduate of Seoul National University's Department of Chemistry, Park moved to the United States to earn a PhD from Johns Hopkins University and then did postdoctoral research at Georgetown University before joining the faculty of Georgetown and the University of Maryland. He later naturalised as a U.S. citizen and worked for the government of Maryland's Department of Health and Mental Hygiene. Park moved back to South Korea in 1986, where he served as head of the Korea Institute of Science and Technology's Applied Sciences Division. He resumed his original South Korean citizenship and relinquished U.S. citizenship in 1996 before joining the Food and Drug Administration, as South Korea did not permit dual citizenship at the time. In his