Treatments for certain types of cancer are improving all the time. For most types of leukemia, as well as breast cancer, when the disease is detected early enough, cure rates are now 85%. For women of childbearing age, however, there is a further anxiety factor: the chemotherapy and radiation treatments that save patients' lives can also render them infertile. Now a new approach, in use at the McGill Reproductive Centre, is helping to overcome this problem.