3933
Treatment has been continued in 3 individuals for 6 - 13 months with persistence of the pressor effect , although there appears to have been some decrease in the degree of response with time .
 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