779
On genomic products exons 1 to 13 ( including 740 bp of the 3 untranslated sequence and all intron / exon boundaries ) were screened , as was a neuroretina specific enhancer in intron 4 .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 None