A group of Chinese workers who were poisoned while manufacturing iPhones say Apple and its supplier have yet to provide for the additional medical treatment they urgently need. In 2009, 137 workers at an Apple supplier factory in…China were exposed to n-hexane, a chemical cleaning agent. Apple has said the workers have been all successfully treated since the incident occurred. But a group of remaining workers at the factory say their health is worsening and that Apple has yet to do anything to help them…Fourteen of the workers…underwent a health examination at a hospital. Doctors…said the workers' conditions have grown more serious and that they should be hospitalized…But [they] cannot afford the medical fees…Apple did not respond to a request for comment.