606
This flow was measured by using a differential pressure transducer , passed through a polygraph , and from this to a computer with custom software that derived ventilation ( VE ) , tidal volume ( VT ) , inspiratory time ( TI ) , expiratory time ( TE ) , breathing frequency ( f ) , and mean inspiratory flow ( VT / TI ) on a breath - by - breath basis .
 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