Quality and Costs of Primary Care in Europe (QUALICOPC) is a multinational study funded by the European Commission through the 7th Framework Program. This study aims to evaluate primary care in Europe on the basis of quality, '' equity '' and costs. QUALICOPC rtacht to analyze the mechanisms that determine the link between the structure and the performance of health systems cerschillende. Assignment: 1) The extension of the sample size from 200 to 400 physicians and 2,000 patients by 4000 in order to make a meaningful comparison between the Dutch and the French-speaking part. 2) Adding an addendum to the questionnaire for the doctors, and an addendum to the questionnaire for the doctors, and an addendum to the questionnaire for the patient. Here are some topics which questioned the Inami has a special interest.