1066
Recently a quantitative Southern blotting procedure was found to improve this frequency ( C . Stolle et al . , Hum . Mutat . , 12 417 - 423 , 1998 ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 None