"When giants learn to dance": international clinical collaboration in headache medicine.

Collaboration is more than evolutionary advantage, it is good business and good for learning. It is through collaboration that we open new doors, create new options, and develop unforeseen opportunities. More than simple information exchange, collaboration allows the joint creation of new value and creates multiple layers of interpersonal connection and interaction leading to enhanced learning. This newly created value has been termed the "collaborative advantage." The headache group at the C. Besta Institute in Milan, Italy, and the John Graham Headache Center in Boston, MA, have begun a collaboration in clinical Headache Medicine. The history and nature of the process and early results are discussed. Programs like this could help advance the field of headache medicine. [ABSTRACT FROM AUTHOR]