1666
Patients in the conventional group had statistically significant greater fall in the systolic blood pressures at 15 , 30 and 45 minutes when compared to the baseline ( P = 0 . 003 , 0 . 001 and 0 . 004 ) .
 None
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:
 None