1. Department of Biostatistics, Bioinformatics, and Biomathematics, Georgetown University, Washington, District of Columbia, USA.
2. Kelly Government Solutions, Rockville, Maryland, USA.
3. Biorepositories & Biospecimen Research Branch, National Cancer Institute, Bethesda, Maryland, USA.
4. Preferred Staffing Group, Arlington, Virginia, USA.
5. Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia, USA.