24079
In contrast to pro - ANP , BNP - 32 plasma concentrations were low at delivery and peaked after 48 hours ( 12 [ 10 . 5 - 20 . 6 ] vs . 88 . 8 [ 71 . 7 - 101 . 4 ] pmol / L , P < . 0001 ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None