10415
However , in the mid - to - late 1980s , a series of letters to the editor and case reports announced an association between tamoxifen therapy in women with breast cancer and the development of endometrial carcinoma .
 endometrial carcinoma, tamoxifen
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 endometrial carcinoma, tamoxifen