略語大辞典 [Med] 12 IBTR ipsilateral breast tumor recurrence 同側乳癌再発.ipsilateral breast tumor recurrence; ref. contralateral breast tumor recurrence; ref. "The discovery of an IBTR indicates that the patient was already at a greater risk of distant disease when the primary tumor was removed", by NSABP(US Nationa 丸善「略語大辞典」JLogosID : 11877761