4911
The expression levels of Ca transport genes , TRPV5 and calbindin - D9k ( CaBP - 9k ) , in the kidney were decreased after treatment with OP and BPA .
 Chemical: Ca; Chemical: BPA
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: Ca; Chemical: BPA