This paper is in the following e-collection/theme issue:

Internet-based Survey & Research Methodology 


Advertisement: Preregister now for the Medicine 2.0 Congress

Tweetations for "Impact of Length or Relevance of Questionnaires on Attrition in Online Trials: Randomized Controlled Trial"

Jim McCambridge, Eleftheria Kalaitzaki, Ian R. White, Zarnie Khadjesari, Elizabeth Murray, Stuart Linke, Simon G. Thompson, Christine Godfrey, Paul Wallace
J Med Internet Res 2011 (Nov 18); 13(4):e96 

ALL TIME (8)  IN THE LAST MONTH (0)  IN THE LAST SIX MONTHS (0)  IN THE LAST YEAR (0)

Tweets 1 - 8 of 8.
1.
 
2.
 
3.
 
4.
 
5.
 
6.
 
7.
 
8.
 
Tweets 1 - 8 of 8. 1