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The adjuvant effect of PSP on OVA - specific IgE and IgG2a responses in different strains of mice Levels of serum OVA - specific IgE ( A ) and IgG2a ( B ) on day 26 after injection into one hind footpad of HBSS ( open columns ) , 10 mug OVA ( gray ) , 40 mug PSP ( hatched ) or 10 mug OVA + 40 mug PSP ( black ) in different mouse strains .
 Anatomy: serum; Anatomy: hind footpad
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: serum; Anatomy: hind footpad