- Correspondence to Dr Christina M Lill, Neuropsychiatric Genetics Group, Department of Vertebrate Genomics, Max Planck Institute for Molecular Genetics, Ihnestr. 63-73, 14195 Berlin, Germany;
- Received 9 November 2012
- Revised 10 December 2012
- Accepted 12 December 2012
- Published online 13 February 2013.
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