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The activity of the EGF receptor promoter can be modulated by E1A protein and receptor RNA levels increased by stimulation with phorbol ester or fetal calf serum .
 GENE: EGF receptor promoter; GENE: E1A protein
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: EGF receptor promoter; GENE: E1A protein