19bec0cb_ocess___Cancer_Guidelines_Wiki__Prognosis
[Level] II [Intervention] A randomised controlled trial [Diagnosis] A study of test accuracy with: an independent, blinded comparison with a valid reference standard, among consecutive patients with a defined clinical presentation [Aetiology] A prospective cohort study [Screening] A randomised controlled trial [Prognosis] 
A prospective cohort study
Guideline development process - Cancer Guidelines Wiki
Prognosis