3424
Three stimulation tests ( ITT , arginine test , and GHRP - 2 test ) were conducted in 71 pre - operative adult patients with pituitary tumors ( age , 18 - 65 years ) .
 Chemical: arginine
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: arginine