12134
At termination ( gd 20 ) , confirmed - pregnant females ( 21 to 25 per group ) were evaluated for clinical status and gestational outcome ; live fetuses were examined for external , visceral , and skeletal malformations .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None