1. Department of EpidemiologyUniversity of Michigan School of Public Health Ann Arbor MI
2. Stroke ProgramUniversity of Michigan Health System Ann Arbor MI
3. Department of BiostatisticsUniversity of Michigan School of Public Health Ann Arbor MI
4. Michael S. Aldrich Sleep Disorders LaboratoryUniversity of Michigan Health System Ann Arbor MI
5. local physician Corpus Christi TX