After sending data, the CRF will be verified by the EORTC Data Manager. In case of missing data or inconsistencies, queries will be generated. These queries will be displayed in VISTA RDC and should be answered in VISTA RDC. You can quickly select the patients with queries to be answered by clicking on the hyperlink 'with queries' on the left part of the screen. The number mentioned in the grey square is the number of patients with queries to be answered.

To see the number of pending queries per form, go to the 'Queries' tab. The pending queries can be  'DM' queries or 'DCF' queries.

• DM queries: raised by the EORTC data manager
• DCF queries: data corrections raised by the investigator side

 Answer queries

To see and answer the DM query/queries on a form, click on 'edit' next to the form. The form will be displayed and the query will be displayed under the field to which the query is related.

The answer to a query can be a new value or you can confirm the current value.

New value

If you want to enter a new value, tick the radiobutton 'new value' and tick the appropriate radiobutton or complete the new value in the field. Mind using the correct format. After the query has been answered, mark it as 'Ready to send' by ticking the checkbox. Clicking on 'Save' in the header of the form will save the answer(s) and close the form.

Confirm current value

In case the answer that was in the field is correct, tick the radiobutton 'confirm current value'. In that case, you must also put a comment to justify why you confirm the value. After the query has been answered, mark it as 'Ready to send' by ticking the checkbox. Clicking on 'Save' in the header of the form will save the answer(s) and close the form.

Do not forget to actually send the queries that are marked as 'Ready to send' in order to make them visible in the clinical database (Send electronic query answers / data corrections (studies with electronic queries)).