1. Unit of Diet, Genes and Environment Danish Cancer Society Research Centre Copenhagen Denmark
2. School of Public Health The University of Hong Kong Hong Kong Hong Kong
3. Department of Public Health, Section for Epidemiology Aarhus University Aarhus Denmark
4. Gynaecological Clinic Juliane Marie Centre Rigshospitalet University of Copenhagen Copenhagen Denmark
5. Department of Breast Surgery Herlev Hospital University of Copenhagen Copenhagen Denmark