3141
The results showed that the average number of GCR in asthmatics was significantly lower than that in healthy subjects (P < 0.01), and there was a linear correlation between the number of GCR and the course of asthma .
 GCR, GCR
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 GCR, GCR