1Georgiannos SN,Chin J,Goode AW. Secondary neoplasms of the breast:a survey of the 20th Century[J].Cancer,2001,(09):2259-2266.
2Kwak JY,Kim EK,Oh KK. Radiologic findings of metastatic signetring cell carcinoma to the breast from stomach[J].Yonsei Medical Journal,2000,(05):669-672.