1. Department of Pathology, Cambridge UniversityTennis Court Road, Cambridge CB2 1QP, UK
2. Department of Obstetrics and Gynaecology, Cambridge UniversityThe Rosie Hospital, Cambridge CB2 2SW, UK
3. GNI Ltd. Kasumigaseki IHF Building 3-5-1Kasumigaseki, Chiyoda-ku, 100-0013 Toyko, Japan
4. Human Genome Centre, Institute of Medical Science, University of Tokyo4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
5. Bioinformatics Centre, Institute for Chemical Research, Kyoto UniversityGokasho, Uji, Kyoto 611-0011, Japan
6. Department of Molecular Medicine and Pathology, University of Auckland85 Park Road, Private Bag 92019, Auckland, New Zealand