Affiliations

• ¹ Stanford University Cancer Center, Stanford, California 94305.
• ² Azienda Ospedaliera Universitaria Integrata di Verona, U.O. di Fisica Sanitaria, Verona 37126, Italy.
• ³ Department of Radiation Oncology, University of California San Francisco, San Francisco, California 94143-0226.
• ⁴ Accuray Inc., Sunnyvale, California 94089.
• ⁵ Mississippi Baptist Medical Center, Jackson, Mississippi 39202.
• ⁶ CK Solutions, Inc., Edmond, Oklahoma 73034.
• ⁷ UT MD Anderson Cancer Center, Houston, Texas 77030.
• ⁸ St Anthony Hospital, Oklahoma City, Oklahoma 73101.
• ⁹ US Radiosurgery, Nashville, Tennessee 80304.
• ¹⁰ Department of Radiation Oncology, University of Miami, Miami, Florida 33101.
• ¹¹ USC Keck School of Medicine, Los Angeles, California 90033.