1. Division of Pulmonary and Critical Care MedicineUniversity of Colorado at DenverAurora Colorado USA
2. Denver Veterans Affairs Medical CenterDenver Colorado USA
3. Center for Cancer and Blood DisordersUniversity of Colorado at DenverAurora Colorado USA
4. Chest, Infectious DiseaseCritical Care AssociatesDes Moines Iowa USA
5. Pharmaceutical Sciences/School of PharmacyUniversity of Colorado at DenverAurora Colorado USA
6. Otolaryngology–Head and Neck SurgeryUniversity of Colorado at DenverAurora Colorado USA
7. Biostatistics and Informatics/Colorado School of Public HealthUniversity of Colorado at DenverAurora Colorado USA
8. Division of Geriatric MedicineUniversity of Colorado at DenverAurora Colorado USA
9. Department of MedicineUniversity of WashingtonSeattle Washington USA
10. Department of EpidemiologyUniversity of WashingtonSeattle Washington USA
11. Seattle Epidemiologic Research and Information CenterSeattle Washington USA
12. Veterans Affairs Office of Research and DevelopmentSeattle Washington USA
13. Group Health Research InstitutesGroup Health CooperativeSeattle Washington USA
14. Department of MedicineMedical College of WisconsinMilwaukee Wisconsin USA
15. Department of PediatricsMedical College of WisconsinMilwaukee Wisconsin USA
16. Human and Molecular Genetics CenterMedical College of WisconsinMilwaukee Wisconsin USA