On top of prison sentences, loss of assets and a $2.6 million restitution order issued several years ago, Li Chen and Yu Zhou had their naturalized U.S. citizenship revoked March 30 as a consequence of stealing exosome-related trade secrets from Nationwide Children's Hospital's Research Institute in Ohio – the hospital that had sponsored them when they first came to the U.S. from China on H-1B Specialty Occupation visas.