Twenty-five years have gone by since Andre Leblanc first Taiwan... Not a month goes by without one of Andre Leblanc's new posters, more educational than ever, being walked into the department to present his manuscript on the determination of the axes of the various foramina, canals, added to the others on the walls of radiology practices, MRI and sulci of the base of the skull, and on their tomographic centers, otolaryngologists and other head specialists...