Frequency and plans for auditing trial conduct {23}
Each site will have monitoring done at three occasions: before study start, early during the trial (after approximately 10 patients have been included at the site) and when the last patient has performed the CT venography. Dedicated research nurses, without co-authorship in the current study, will monitor the data inserted in the eCRF on a monthly basis.The trial steering group will meet at least every second month to review trial conduct. The trial steering group and the DMC meet to review conduct throughout the trial period.