22989
Aim : To investigate the relationship of fibroblast growth factor receptor 4 ( FGFR4 ) gene polymorphisms with the response of Chinese patients with non - small cell lung cancer ( NSCLC ) to chemotherapy . Methods : A total of 629 patients with Stage III ( A + B ) or IV NSCLC , as well as 729 age - and gender - matched healthy controls were recruited .
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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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