3545
A deletion in an individual with retinoblastoma was reported to separate the closely linked ESD and retinoblastoma ( RB1 ) loci , placing ESD proximal to RB1 .
 retinoblastoma, retinoblastoma
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 retinoblastoma, retinoblastoma