[General practitioners as gatekeepers: Better health care than in countries with self-referral to specialists?].

In the Netherlands and a number of other European countries general practitioners are the gatekeepers for specialist and hospital care. European health care systems with gatekeeping general practitioners, i.e. those with comprehensive, strong primary care, perform better on a number of health indicators and on equity. However, it is less clear if gatekeeping health care systems have lower health expenditure. There is ongoing debate on whether gatekeeping plays a role in diagnostic delay of cancers. At health care system level research is being hampered by small numbers and should be combined with in-depth research into health care mechanisms.