Quality assurance of medical information on the Internet.

Physicians and Laymen use the Internet to answer health related questions. The quality of information is very diverse between the various web sites. Quality assurance is lacking. However, there are several means to rate the quality of information on the internet. For the time being, these mechanisms show some evidence on the provided information. Quality assurance, like peer review for scientific papers, has to be established to make the internet a trustworthy resource for physicians and patients.