Among eligible subjects, 26,872 participants returned a second time and the participation rate was 75%.
A month after that interview its key participants returned to the scene.
Twelve participants returned the forms.
Forty-eight hours later, participants returned for a cued-recall test in a magnetic resonance scanner.
Participants returned to complete the visual search paradigm 45 min later.
Twenty-four hours later, participants returned to the lab to complete the memory test.
Following the five-day practice interval, participants returned on the last day for evaluation (session 2).
Post-release, participants returned to resource-poor communities where they experienced socialisolation.
Twenty-four hours later, participants returned to complete a memory test (day 2).
Participants returned to receive their blood test results two weeks after the blood draw.
Participants returned to the laboratory two weeks after discharge to ensure residual toxicity was not present.
