[1] Washington Univ, St Louis, MO USA
[2] Oakland Univ, William Beaumont Sch Med, Royal Oak, MI USA
[3] Dallas Surg Grp, Dallas, TX USA
[4] Univ Miami Hosp, Canc HealthCare Associates, Miami, FL USA
[5] Virginia Commonwealth Univ, Massey Canc Ctr, Richmond, VA USA
[6] BioStat Int Inc, Tampa, FL USA
[7] Michigan Healthcare Profess, 21st Century Oncol, Farmington Hills, MI USA