13705
The percentage of patients with detectable bisphenol A ( BPA ) concentrations was significantly higher in the infertile patients compared with fertile subjects .
 Chemical: bisphenol A; 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: bisphenol A; Chemical: BPA