1179
The same potency ranking was observed for morphology and gene expression ( MEHP > MBzP > MBuP > MMP ) .
 MEHP, MBzP, MBuP, MMP
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 MEHP, MBzP, MBuP, MMP