Performed Planned Requested Absence to be justified Not necessary Not mentioned
Autologous not genetically modified (n=31) 11 5 2 1 6 6
Allogeneic not genetically modified (n=29) 14 4 0 1 5 5
Autologous genetically modified (n=20) 8 1 1 3 4 3
Allogeneic genetically modified (n=6) 3 0 1 1 1 0
Total of tumourigenicity studies 36 10 4 6 16 14