"John Bonica, the indefatigable champion of the multidisciplinarity of pain, took heart at the new interest generated by the gate control method. Since 1960, he had influenced a generation of young anesthesiologists, who were trained as fellows at the University of Washington... He also collected the names of researchers and clinicians interested in pain and had begun correspondences with many of them. Between 1969 and 1975, this evangelical work bore fruit, when Bonica was invited by the Japanese Ministry of Health and by corresponding agencies in several European and Latin American nations to consult on the development of pain clinics and facilities. In May, 1973, he brought 350 pain researchers together in the Seattle suburb of Issaquah for 3 days of papers and discussion and gained the group's approval to launch an international, interdisciplinary professional organization devoted to pain research and management. The International Association for the Study of Pain (IASP) was formally incorporated the following year, and the first issue of the journal, Pain... was sent to members in January 1975."