41 Organizing and arranging of seminars, webinars, conventions, symposiums, online courses, information exchange through seminars, conventions, symposiums, online courses and attendant web discussions, and training courses in the field of radiation oncology, in particular, delivering radiation to tumors by technologies incorporating image guided and intensity modulated radiation therapy and technologies incorporating stereotactic body radiation therapy and stereotactic radiosurgery; organization and management of exhibitions for educational purposes; education services, namely, teaching and training services through classes, webinars, seminars, workshops, and attendant web discussions in the field of oncology and radiotherapies; publication of texts and the online publication thereof, namely, publication of texts in the field of medical research and development; publishing and editing of books, technical papers and periodicals