26710
Airway resistance ( RI ) and lung compliance ( Cdyn ) were measured , histological studies were evaluated by the hematoxylin and eosin staining , Th1 / Th2 , OVA - specific serum , and BALF IgE levels and Th17 cytokines were evaluated by enzyme - linked immunosorbent assay , and Th17 cells was evaluated by flow cytometry ( FCM ) .
 hematoxylin, eosin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 hematoxylin, eosin