3795
PGE2 synthesis was significantly higher in outer medulla , but not cortex or inner medulla , of jj ( 38 + / - 6 ng / mg prot ) than jJ rats ( 15 + / - 3 ) ( p less than 0 . 01 ) .
 Chemical: PGE2
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: PGE2