The official directory of the denomination is the Seventh-day Adventist Yearbook , published by the General Conference. It covers the geographical and administrative subdivisions, from the General Conference organization and its departments, commissions, and services, down to local administrative offices; the various denominational institutions-educational, medical, publishing, and others; and a list of workers. In it also appear the General Conference constitution and bylaws, the Statement of Fundamental Beliefs, a list of countries with their organizational locations, and statistical summaries. There are also church directories, listing the addresses of local churches, published by some world divisions. The local conferences in North America have unpublished directories, which they circulate among those who have need for statistics and information on specific local conferences. There are other directories, not of the church but of Seventh-day Adventist groups, such as the yearly directories of SDA physicians and dentists in the Alumni Journal of the Loma Linda University School of Medicine and the Journal of the National Association of Seventh-day Adventist Dentists , and the Adventist Services and Industries Laymen’s Directory.