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. 2008 Oct 3;10(4):e29. doi: 10.2196/jmir.1012

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© Arjen Hoogendam, Anton FH Stalenhoef, Pieter F de Vries Robbé, A John PM Overbeke. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 03.10.2008. Except where otherwise noted, articles published in the Journal of Medical Internet Research are distributed under the terms of the Creative Commons Attribution License (http://www.creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 1) the original work is properly cited, including full bibliographic details and the original article URL on www.jmir.org, and 2) this statement is included.

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Screenshot of the page were participants could mark whether they were disturbed while searching, could select whether a complete, partial, or no answer was found, and could return to the problem