41 Medical training and teaching; educational services, namely, providing training of students for certification in the fields of intraoperative neurophysiological monitoring, neurodiagnostic monitoring, and electroneurodiagnostic monitoring; educational services, namely, conducting classes, seminars, practicums, workshops and programs in the field of medical monitoring and distribution of course materials in connection therewith in printed or electronic format; training in the use and operation of medical diagnostic apparatus