A Second Example of Mutually Isolated Medical Literatures Related by Implicit, Unnoticed Connections.

The article reports on mutually isolated medical literatures. It is argued that the fragmentation of science into specialties suggests that unintended and undiscovered relationships within the literature cannot be uncommon. The goal of this article is to develop methods and strategies for finding such relationships. A prototype of one possible structure underlying such a process was suggested. It is argued that the biomedical literatures on migraine and magnesium are mutually isolated to a high degree with a few exceptions, they do not cite or refer to each other and are not cocited.