57
The EGFR polymorphisms , 497G / A ( P = 0 . 008 ) , and the haplotypes of the promoter variants , EGFR - 216G / T and - 191C / A ( P = 0 . 029 ) , were associated with the appearance of skin rash .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None