Methodological Challenges in Online TrialsElizabeth Murray, Paul Wallace, Zarnie Khadjesari et al.|Journal of Medical Internet Research|2009Cited by 208
MRI Tumor Regression Grade and Circulating Tumor DNA as Complementary Tools to Assess Response and Guide Therapy Adaptation in Rectal CancerShelize Khakoo, David Cunningham, Katharina von Loga et al.|Clinical Cancer Research|2019Cited by 138
On-line Randomized Controlled Trial of an Internet Based Psychologically Enhanced Intervention for People with Hazardous Alcohol ConsumptionPaul K. Wallace, Stuart Linke, Elizabeth Murray et al.|PLoS ONE|2011Cited by 118
Impact and Costs of Incentives to Reduce Attrition in Online Trials: Two Randomized Controlled TrialsZarnie Khadjesari, Christine Godfrey, Elizabeth Murray et al.|Journal of Medical Internet Research|2011Cited by 117
Impact of Length or Relevance of Questionnaires on Attrition in Online Trials: Randomized Controlled TrialJim McCambridge, Paul Wallace, Eleftheria Kalaitzaki et al.|Journal of Medical Internet Research|2011Cited by 80