Combining directed acyclic graphs and the change-in-estimate procedure as a novel approach to adjustment-variable selection in epidemiology
BMC Medical Research Methodology 2012, 12:156 doi:10.1186/1471-2288-12-156
This article is currently available as a provisional PDF. Reprints are produced from the final PDF, which is normally produced within 3 weeks.
Please complete the following form to register your interest in ordering reprints of this article. BioMed Central will contact you by email when the final PDF is available with details of how to obtain a quotation and place an order.
Fields marked * are required