For devices that require clinical trials and no trials have been performed outside or inside of Vietnam, the Investigator is responsible for preparing a clinical trial protocol. The application should be submitted to the Science and Training Department before the 20th of the month. Within 30 days, the application will be examined. The DMEHW will help coordinate the trial. 15 days following the trial, the Science and Training Department will inform the Investigator if supplementary information is necessary. The Ministry of Health will approve or reject the clinical trial results within 15 days.