3481
Here we used field inversion gel electrophoresis ( FIGE ) to construct a restriction map of approximately 1 , 000 kb of DNA surrounding the RB1 locus and to detect the translocation breakpoints in three retinoblastoma patients .
 Disease: retinoblastoma
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities: retinoblastoma 
Answer:
 Disease: retinoblastoma