29911
Airway resistance ( Raw ) were measured by the forced oscillation technique , histological studies were evaluated by The hematoxylin and eosin ( HE ) staining , Th1 / Th2 and Th17 cytokines were evaluated by enzyme - linked immunosorbent assay ( ELISA ) , and CD4 ( + ) CD25 ( + ) Foxp3 ( + ) regulatory T cells ( Tregs ) was evaluated by Flow Cytometry ( FCM ) , the forkhead / winged helix transcription factor ( Foxp3 ) was evaluated by western blotting .
 Chemical: hematoxylin; Chemical: eosin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: hematoxylin; Chemical: eosin