1. Inauguration of radiotherapy as a new scientific specialty by Leopold Freund 100 years ago;Kogelnik;Radiother Oncol,1997
2. Medical electricity, Röntgen rays, and radium;Tousey,1915
3. The practical application of the Röntgen rays in therapeutics and diagnosis;Pusey,1903
4. Elements of general radio-therapy for practitioners;Freund,1904
5. Radiotherapy and phototherapy;Allen,1904