16780
In this study we show that EGF receptor ( EGFR ) is activated following pemphigus vulgaris ( PV ) IgG treatment of primary human keratinocytes and that EGFR activation is downstream of p38 mitogen - activated protein kinase ( p38 ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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