Breast Cancer

, Volume 25, Issue 5, pp 626–627 | Cite as

Current status of postmastectomy radiation therapy in T1–2 breast cancer with limited positive lymph nodes in Japan: Japan Clinical Oncology Group Survey

  • Shinsuke Sasada
  • Tadahiko Shien
  • Hiroji Iwata
Letter to the Editor



This study was supported by a Grant-in-Aid for Practical Research on Innovative Cancer Control from the Japan Agency for Medical Research and Development, AMED (17ck0106307h0001). We thank to all institutes affiliated with JCOG which cooperated with this survey.

Compliance with ethical standards

Conflict of interest

None of the authors has any conflicts of interest to disclose.


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Copyright information

© The Japanese Breast Cancer Society 2018

Authors and Affiliations

  1. 1.Department of Surgical Oncology, Research Institute for Radiation Biology and MedicineHiroshima UniversityHiroshimaJapan
  2. 2.Department of Breast and Endocrine SurgeryOkayama University HospitalOkayamaJapan
  3. 3.Department of Breast OncologyAichi Cancer Center HospitalNagoyaJapan

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