1531
In patients with OAB urinary PGE2 positively correlated with volume at first desire to void and maximum cystometric capacity ( p < 0 . 05 ) .
 Disease: OAB; 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:
 Disease: OAB; Chemical: PGE2