Table 1 Characteristics of the expert panels that participated to get the original data (Erasmus MC) and the validation data (Amsterdam UMC). The panels were from two different University Medical Centers

 ENT surgeon

1

1

 General surgeon

1

–

 Neurosurgeon

1

1

 Oncological gynaecologist

1

–

 Oncological surgeon

2

1

 Oncological urologist

–

1

 Thoracic surgeon

1

–

 Transplantation surgeon

1

1

 Trauma surgeon

1

2

 Vascular surgeon

2

1

 Urologist

2

–

 Cardiologist

1

2

 Final year medical student

1

–

 General practitioner

1

1

 Geriatrician

2

2

 Internist

1

1

 Psychologist

–

1

 Rheumatologist

1

–

 Total

18

15