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- [3] Historical background INTRAOPERATIVE RADIATION THERAPY IN THE TREATMENT OF CANCER, 1997, 31 : 1 - 2
- [8] HISTORICAL BACKGROUND AND EPIDEMIOLOGY BAILLIERES CLINICAL RHEUMATOLOGY, 1994, 8 (02): : 245 - 261
- [10] Preface: Historical background JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1997, 102 (D13) : 16215 - 16217