The Traditional Chinese Medical Literature Analysis and Retrieval System TCMLARS is a database system established by the Institute of Information on Traditional Chinese Medicine, China Academy of Traditional Chinese Medicine, to meet the increased need for traditional Chinese medical information services in the 1980's. The system contained over 340,000 references and abstracts to literature on Traditional Chinese Medicine including Chinese materia medica, acupuncture, qigong, Chinese massage and health promotion. Source material for TCMLARS is drawn from more than 800 Chinese biomedical journals published since 1984. Over 30,000 records are added to the system annually. There are 15 databases in the system, 4 of which include both Chinese and English versions. Extensive indexing according to Chinese Traditional Medicine and Materia Medica Subject Headings and Medical Subject Headings (MeSH) is done for each citation. Information can be searched from almost all of the fields including title, author, author affiliation, subject headings, key words, classification, publication type, and abstract. The database system is available via website ( http://www.cintcm.com, http://www.cintcm.ac.cn, http://www.sinomd.com), or CD-ROM or floppy disk. A bibliometric study reviewing the traditional Chinese medical literature on neoplasm was conducted using TCMLARS. 10,185 references were pulled up from the databases (1984 - 1998) by the subject heading "neoplasms". For advanced searches, the following subheadings were used: traditional Chinese drug therapy, acupuncture -moxibustion therapy, qigong therapy, massage therapy, acupoint therapy, integrated Chinese traditional and Western medicine therapy. Further analyses were performed on neoplasm type, year of publication, author's organizational affiliation, type of literature, and the research grant. This study clearly outlines the extent of clinical work and research on neoplasms treated by Traditional Chinese Medicine in China. TCMLARS is proving to be the most efficient and effective means of literature retrieval and analysis for Traditional Chinese Medicine in the world.