Provenance: Not commissioned; externally peer reviewed by European Journal of Clinical Investigation, Journal of Clinical Epidemiology, Preventive Medicine, Mutagenesis, Journal of Epidemiology and Community Health, European Journal of Epidemiology. In order to encourage dissemination of this extension to the STROBE Statement, this article has also been published by European Journal of Clinical Investigation, Journal of Clinical Epidemiology, Preventive Medicine, Mutagenesis, Journal of Epidemiology and Community Health, European Journal of Epidemiology.
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Gallo et al. (2011) studied this question.
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