16007
Pregnant female ICR mice were intralaryngopharyngeally administered with 30 mu l of phosphate buffered solution ( the control group ) or resuspended PM of Standard Reference Material 1649a at 0 . 09 ( low ) , 0 . 28 ( medium ) , 1 . 85 ( high ) or 6 . 92 ( overdose ) mu g / mu l once every three days from day 0 to 18 of pregnancy ( n = 8 - 10 ) .
 Chemical: phosphate
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: phosphate