*British Journal of Cancer* 1998; 77(12):2318-2323
*Journal of Medical Genetics* 1998; 35(3):218-221
*American Journal of Human Genetics* 1998; 62(3):676-689
*American Journal of Human Genetics* 1998; 62(3):653-658
*BMJ* 1998; 316(7126):189-193
*BMJ* 1997; 315(7113):905-908
*American Journal of Human Genetics* 1997; 61(2):418-422
*Archives of Disease in Childhood - Fetal and Neonatal Edition* 1996; 75(3):F202-F208