3293
The contractile effects of oxytocin , prostaglandin F2 alpha and their combined use on human pregnant myometrium were studied in vitro .
 GENE: oxytocin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: oxytocin