Publication | Open Access
Impact of Length or Relevance of Questionnaires on Attrition in Online Trials: Randomized Controlled Trial
78
Citations
18
References
2011
Year
ISRCTN Register 31070347; http://www.controlled-trials.com/ISRCTN31070347/31070347 Archived by WebCite at (http://www.webcitation.org/62cpeyYaY).
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