The World Organization of National Colleges, Academies and Academic Associations of General Practitioners/Family Physicians (WONCA) is a not-for-profit organization and was founded in 1972 by member organizations in 18 countries. The Mission of WONCA is to improve the quality of life of the peoples of the world through defining and promoting its values, including respect for universal human rights and including gender equity, and by fostering high standards of care in general practice/family medicine.Prepared by the ICPC-3 Consortium of WONCA, the World Organization of Family Doctors.Edited by Kees van Boven and Huib Ten Napel.