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The cyclin - dependent kinase inhibitor , p27 , accumulates upon serum withdrawal , only in the presence of VHL , as a result of the stabilization of the protein .
 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