DOI:
10.1055/s-00034923
Adipositas - Ursachen, Folgeerkrankungen, Therapie
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References
Mayr A, Gefeller O, Prokosch HU. et al.
Web-based data collection yielded an additional response bias–but had no direct effect on outcome scales.
J Clin Epidemiol 2012;
65: 970-977.
DOI: 10.1016/j.jclinepi.2012.03.005.
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