Results of the ADT-Panel of the Central Research Institute of ambulatory health care in Germany. The ADT-Panel of the Central Research Institute contains the remuneration data that are quarterly collected by office-based physicians and transmitted in anonymous form. These data can be classified according to the status of the insured patient, the diagnoses made or the treatment provided. The Patient Panel does therefore represent an important instrument which allows a rapid scientific analysis (3 to 4 weeks after the end of a quarter) about how patients are treated by different specialists. It might also be used to forecast trends. The Patient Panel does as well allow the demonstration of specialty-related statistics on diagnoses and disease-related treatment provision. The complete publication and some exemplary tables can be found in the DGN Internet (www.dgn.de; Deutsches Gesundheitsnetz). A short summary is available on the home page of the Central Research Institute (www/zi-koeln.de).