- 'Effectiveness of a Brain-Computer Interface Based System for Cognitive Enhancement in the Normal Elderly' → 'Trial Collaborator' → 'National University of Singapore' is correct, citation: https://clinicaltrials.gov/ct2/show/record/NCT01661894
- 'Effectiveness of a Brain-Computer Interface Based System for Cognitive Enhancement in the Normal Elderly' → 'Trial Collaborator' → 'Duke–NUS Medical School' is incorrect because this is a Trial Sponsor, not a Trial Collaborator. To distinguish between sponsors and collaborators, check the tabular view of the official clinical trial record, citation: https://clinicaltrials.gov/ct2/show/record/NCT01661894.