TY - GEN
AU - McCambridge, Jim
AU - Kalaitzaki, Eleftheria
AU - White, Ian R
AU - Khadjesari, Zarnie
AU - Murray, Elizabeth
AU - Linke, Stuart
AU - Thompson, Simon G
AU - Godfrey, Christine
AU - Wallace, Paul
TI - Impact of Length or Relevance of Questionnaires on Attrition in Online Trials: Randomized Controlled Trial
PB - JMIR Publications Inc.
SN - 1438-8871
KW - Health Informatics
PY - 2011
UR - http://slubdd.de/katalog?TN_libero_mab2
ER -
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