Truuske (GH) de Bock is professor in the field of oncological epidemiology. Her field of research is mainly related to risk for breast cancer in women with a familial predisposition to breast and ovarian cancer, mammography for women under age 50 with a familial predisposition to breast cancer, radiation induced breast cancer risk, and the modeling of follow-up strategies after a diagnosis of cancer. Apart from clinical research projects, she is specialized in a model-based analysis of complex diagnostic and therapeutic strategies by using medical decision making techniques. The conduct of meta-analyses is part of this. She got her master degree in psychology (main courses: theoretical psychology, social psychology, statistics and informatics) and her Ph degree in medicine (Peripheral osteoarthritis in general practice. Leiden: University of Leiden, 1994. She became a certified Scientific Researcher in Medicine and Biology (In Dutch: Epidemioloog B) in 1997.She worked at the Department of Primary Health Care and the Department of Medical Decision Making of the Leiden University Medical Center from 1998 to 2004 until her present appointment at the University Medical Center Groningen in 2004. She had an EG-Fellowship in Southampton at the Department of Primary Medical Care at the University of Southampton. She has been involved in teaching on epidemiology and medical decision making for graduates and postgraduates. She is member of a working committee of the Dutch National Health Council (Gezondheidsraad), which is installed to give advice on the topic of optimal follow-up after a diagnosis of cancer. She is member of a working committee of the Dutch National Health Council which is installed to give advice on the introduction of screening for colorectal cancer in the Netherlands.She is member of the working group involved in the revision of the CBO/NABON guidelines regarding the diagnostics of breast cancer. In addition, she is involved in the recently revised version of the CBO/NABON guidelines regarding the treatment of breast cancer and the guideline for breast cancer in general practice (NHG).