834
In the present study , leukocyte DNA from 143 patients with familial clustering of breast and / or ovarian cancer and tumour DNA from 96 breast carcinomas were screened for base mutations in the estrogen receptor gene ( ESR ) .
 Disease: breast and / or ovarian cancer; Disease: tumour; Disease: breast carcinomas
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: breast and / or ovarian cancer; Disease: tumour; Disease: breast carcinomas