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Comparison of academic performance of twins and singletons in adolescence: follow-up study
BMJ 2006; doi: https://doi.org/10.1136/bmj.38959.650903.7C (Published 29 September 2006) Cite this as: BMJ 2006;:bmj;bmj.38959.650903.7Cv1This is a PDF-only article. The first page of the PDF of this article appears above.