Tan, Say-BengDear, KeithBruzzi, PaoloMachin, David2015-12-132015-12-130959-535Xhttp://hdl.handle.net/1885/88561Proving that a new treatment is more effective than current treatment can be difficult for rare conditions. Data from small randomised trials could, however, be made more robust by taking other related research into account.Keywords: accuracy; cancer therapy; clinical trial; controlled clinical trial; evidence based medicine; health education; priority journal; randomized controlled trial; review; Data Interpretation, Statistical; Humans; Neoplasms; Proportional Hazards Models; Random20032015-12-12