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To investigate if the two isoforms are differentially expressed during embryogenesis , VHL mRNA was reverse transcribed from 13 fetal tissues ( 8 - 10 weeks gestation ) .
 Disease: VHL
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: VHL