Am J Chin Med. 1981 Summer; 9(2): 134-43.

Oriental medicine: a computerized study of complex recipes and their components: herbs most frequently used in traditional Japanese and Korean medicine.

Brekhman II, Grinevitch MA, Kyu KB.

The investigated plants were processed in a computer to calculate their respective frequency of utilization in the traditional medicine of Japan and Korea. Each plant was characterized by means of certain quantitative indices (frequency-, pharmacological-, therapeutic-, and cumulative indices). Out of 663 species included in 558 prescriptions, a few "elite" groups were selected which constitute a total of 92 herbs.