[CancerNet online--a contribution to improving oncologic management]

We started the CancerNet project to evaluate the suitability of the internet to improve the quality of health care and the physician-patient relationship by offering worldwide access to high quality guidelines and standards.

Since early 1994 we have offered access to the National Cancer Institute's guidelines for current cancer therapy to physicians via WWW. These guidelines, which are provided by the NCI in accordance with the rules for evidence-based medicine, are accompanied by general information for non-professionals. Every month about 500 text-documents are HTML-encoded, linked together to about 10,000 abstracts available online as well as to MEDLINE. CancerNet is offered in English, Spanish, and German (only patient information) (http://www.meb.uni-bonn.de/cancernet/).

From analyzing log files and user surveys in 1996, 1997, 1998, 1999, and 2000, we know that offering guidelines and patient information via the web fits most expectations of our users (physicians, health professionals, scientists, and laymen) on a high quality medical information service. Since 1994 nearly 2 million users, including more than 200,000 physicians, used our service. About 95% rated our service excellent or good.