3071
Production of autochthonous prostate cancer in Lobund - Wistar rats by treatments with N - nitroso - N - methylurea and testosterone .
 Disease: prostate cancer; Chemical: N - nitroso - N - methylurea; Chemical: testosterone
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: prostate cancer; Chemical: N - nitroso - N - methylurea; Chemical: testosterone