1. University of Kansas School of Medicine Westwood Kansas
2. University of Kansas Cancer Center Westwood Kansas
3. Division of Hematology‐Oncology, Department of Medicine Harvard University and Dana‐Farber Cancer Institute Boston Massachusetts
4. Department of Biostatistics University of Pittsburgh Graduate School of Public Health Pittsburgh Pennsylvania
5. Texas Oncology Round Rock, Texas
6. University of Pittsburgh School of Medicine and Hillman Cancer Center at the University of Pittsburgh Medical Center Pittsburgh Pennsylvania
7. National Institute for Occupational Safety and Health (NIOSH) Research Branch, Centers for Disease Control and Prevention Pittsburgh Pennsylvania