Two racetrack veterinarians who are the principals of Maryland Veterinary Group (MVG) have been served with notices of violations and were given provisional suspensions that started Jan. 12 after Horseracing Integrity and Welfare Unit (HIWU) searches of that practice's offices at Laurel Park and Delaware Park allegedly turned up "banned" substances that, under Horseracing Integrity and Safety Authority (HISA) rules, are never to be found in any covered Thoroughbred or possessed on any HISA-regulated grounds. Dr. Nicholas Meittinis and Dr. Adam Lockard are both alleged to have violated HISA Rule...