Correspondence to S. Bacchetti. research in this field may render the information rapidly
outdated, we hope that the present survey of over 3500 tumour and control samples will aid
basic researchers and clinical oncologists in evaluating the role of telomerase in cancer,
and in designing future studies that will eventually determine the usefulness of the enzyme
as a diagnostic or prognostic marker or as a target for cancer therapy. We have restricted the
data in the present article to papers that have been published or are in press up to …