14538
In all 74 individuals , prolactin correlated inversely with age ( p < 0 . 0001 ) and directly with serum estradiol ( p = 0 . 018 ) .
 Chemical: estradiol
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: estradiol