1840
In vitro , fluoxetine induced pulmonary arterial muscle contraction in fetal , but not adult , animals ( P < 0 . 01 ) and reduced serotonin - induced contraction at both ages ( P < 0 . 01 ) .
 Chemical: fluoxetine; Chemical: serotonin
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: fluoxetine; Chemical: serotonin