POPLINE, the world's largest database on reproductive health, provides bibliographic citations to the worldwide literature on family planning technology, family planning programs and population law and policy. Demography, AIDS and other sexually transmitted diseases, maternal and child health, primary health care communication, and population and its effect on the environment are covered when related to developing countries. POPLINE contains citations and abstracts to a variety of materials including journal articles, monographs, technical reports, and unpublished works; links to full-text documents are also included. The majority of items are published from 1970 to the present, however, there are selected citations dating back to 1827. In addition to free text searching, the database can be searched by keywords from the POPLINE Thesaurus , a controlled vocabulary of 2,400+ terms used to index documents in the database.