Table 1.

Questionnaire for decision of clinical geneticist using screening instrument

1.	Is there for this patient any reason for referral to a clinical geneticist for further examination into the suspicion of the presence of a TPS?
	If no: end questionnaire
2.	Based on what is your decision made? (Multiple answers possible) □ The type of malignancy □ Medical history of the patient □ Family history □ Morphological abnormality as depicted on the childhood cancer checklist □ Morphology 2D pictures □ Morphology 3D picture
3.	Would you refer the patient if you did not have the access to the 2D and 3D pictures?
	If no: ○ My referral was mainly based on the 2D pictures ○ My referral was mainly based on the 3D picture ○ My referral was mainly based on both the 2D and 3D pictures

2D, two-dimensional; 3D, three-dimensional; TPS, tumour predisposition syndrome.