2474
Glomerular filtration rate ( GFR ) and effective renal plasma flow ( ERPF ) were measured by inulin and para - aminohippurate ( PAH ) clearance , respectively .
 Chemical: para - aminohippurate; Chemical: PAH
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:
 Chemical: para - aminohippurate; Chemical: PAH