29979
There was an effect of time [ F ( 21 , 110 ) = 11 . 59 , p < 0 . 001 , [ Formula : see text ] = 0 . 69 ) and univariate analyses revealed that the majority of symptoms increased linearly throughout the period of abstinence with detectable onsets typically between the first 60 and 180 min of abstinence .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None