Editorials Educational performance in twins BMJ 2006; 333 doi: https://doi.org/10.1136/bmj.39037.543148.80 (Published 23 November 2006) Cite this as: BMJ 2006;333:1080 Article Related content Metrics Responses Peer review Related articles PAPERS The cognitive cost of being a twin: evidence from comparisons within families in the Aberdeen children of the 1950s cohort study Published: 29 November 2005; BMJ doi:10.1136/bmj.38633.594387.3A PAPERS The cognitive cost of being a twin: evidence from comparisons within families in the Aberdeen children of the 1950s cohort study Published: 18 November 2005; BMJ doi:10.1136/bmj.38633.594387.3A Paper The cognitive cost of being a twin: evidence from comparisons within families in the Aberdeen children of the 1950s cohort study Published: 01 December 2005; BMJ 331 doi:10.1136/bmj.38633.594387.3A See more Return of the “firm” gets cautious welcome BMJ December 07, 2016, 355 i6556; DOI: https://doi.org/10.1136/bmj.i6556 Cancer drugs remain FDA approved despite lack of benefit, study finds BMJ December 06, 2016, 355 i6568; DOI: https://doi.org/10.1136/bmj.i6568 Whole brain radiotherapy for brain metastases BMJ December 05, 2016, 355 i6483; DOI: https://doi.org/10.1136/bmj.i6483 Five thousand dead and counting: the Philippines’ bloody war on drugs BMJ November 28, 2016, 355 i6177; DOI: https://doi.org/10.1136/bmj.i6177 Fair vaccine pricing please, not random acts of charity BMJ November 23, 2016, 355 i6173; DOI: https://doi.org/10.1136/bmj.i6173
