• 1
    Metters J. Report of An Independent Review of Access to the Yellow Card Scheme. London: The Stationery Office, 2004.
  • 2
    Medicines and Healthcare products Regulatory Agency (MHRA). What happens to a Yellow Card. Available at:, accessed 9 June 2010.
  • 3
    World Health Organisation. Consumer reporting of adverse drug reactions. WHO Drug Information, 2000; 14: 211215.
  • 4
    Bastien JMC. Usability testing: a review of some methodological and technical aspects of the method. International Journal of Medical Informatics, 2010; 79: e18e23.
  • 5
    Jaspers MWM. A comparison of usability methods for testing interactive health technologies: methodological aspects and empirical evidence. International Journal of Medical Informatics, 2009; 78: 340353.
  • 6
    Jaspers MWM, Steen T, van den Bos C, Green M. The think aloud method: a guide to user interface design International. Journal of Medical Informatics, 2004; 73: 781795.
  • 7
    Boren MT, Ramey J. Thinking aloud: reconciling theory and practice. IEEE Transactions on Professional Communication, 2000; 43: 261278.
  • 8
    Nisbett RE, Wilson TD. Telling more than we know: verbal reports on mental processes. Psychological Review, 1997; 84: 231259.
  • 9
    Sears A. Heuristic walkthroughs: finding the problems without the noise. International Journal of Human–Computer Interaction, 1997; 9: 213234.
  • 10
    Kamper RJ. Extending the usability of heuristics for design and evaluation: lead, follow and get out of the way. International Journal of Human–Computer Interaction, 2002; 14: 447462.
  • 11
    Schafer-Keller P, Dickenmann M, Berry D, Steiger J, Bock A, De Geest S. Computerized patient education in kidney transplantation: testing the content validity and usability of the Organ Transplant Information System (OTISTM). Patient Education and Counseling, 2009; 74: 110117.
  • 12
    Maarten W, van Someren MW, Jacobijn YFB, Sandberg AC. The Think Aloud Method. A Practical Guide to Modelling Cognitive Processes. London: Academic Press, 1994.