10685
BACKGROUND : The aim of this study was to determine the response rates and toxicity of two regimens containing granulocyte - macrophage - colony stimulating factor ( GM - CSF ) in combination with interleukin - 2 ( IL - 2 ) in the treatment of patients with metastatic renal cell carcinoma .
 granulocyte - macrophage - colony stimulating factor, GM - CSF, interleukin - 2, IL - 2
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 granulocyte - macrophage - colony stimulating factor, GM - CSF, interleukin - 2, IL - 2