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van Beijsterveldt CE, van Baal GC, Molenaar PC, Boomsma DI, de Geus EJ.van Beijsterveldt CE, et al. Among authors: boomsma di.Behav Genet. 2001 Nov;31(6):533-43. doi: 10.1023/a:1013389226795.Behav Genet. 2001.PMID: 11838531
van Baal GC, de Geus EJ, Boomsma DI.van Baal GC, et al. Among authors: boomsma di.Behav Genet. 1998 Jan;28(1):9-19. doi: 10.1023/a:1021400613723.Behav Genet. 1998.PMID: 9573642