Table 1.

RTQA within each of the current GHG steering committee members as of August 2013.

GHG member	Year of RTQA implementation	Current human resources	Current number of intergroup trials and RTQA projects
EORTC–ROG	1982	Full time: 1 radiation oncologist, 1 medical physicist, 1 radiation technologist	9
		In kind: ROG members
IAEA	1969	Full time: 4 radiation oncologists, 3 medical physicists, 1 lab technician, administrative support, an individual data management centre per trial	11
		In kind: 1 Medical Physicist
ITC	1994	Full time: 2 medical physicists, 2 informaticists, 3 data managers	45
JCOG	1999	In kind: 18 radiation oncologists, 12 medical physicists	5
RTTQA	1987	Full time: 1 radiation oncologist, 3 medical physicists, 3 radiation technologists	6
		Part-time: 1 radiation oncologist, 17 medical physicists, 3 radiation technologists, 1 dosimetrist, 2 IT support, 1 administrative support
		In kind: 3 medical physicists
QARC	1980	Full-time:1.5 Radiation Oncologists, 0.5 Medical Physicist, 4.1 Research Dosimetrists, 4 Informatics Support Personnel, 9.5 Data Managers, 3 Administrative Support Personnel.	54
RPC	1968	Full time: 7 medical physicists, 3.5 research dosimetrists, 3 IT support, 6 administrative support employees, 5 optically-stimulated/thermoluminescent dosimeter technicians, 4 physicist assistants, 0.5 machinist	50
RTOG	1968	Full time: 2 medical physicists, 5 dosimetrists, 1 data assistant & credentialing, 1 administrative support	67
TROG	1989	Full time: 1 manager, 1 radiation therapist, 0.4 medical physicist, 1 research officer, 0.5 IT support. For software support: 1 programmer, 1 physicist	9
		In kind: TROG members