1390
The no observed effect level ( NOEL ) for this study was 50 mg / kg / day based on increased MNGs and reduced testes testosterone concentration in the fetal rat .
 Chemical: testosterone
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: testosterone