1560
The disturbance of pulmonary gas exchange , as revealed by the high value of AaDO2 , existed without left ventricular dysfunction , and AaDO2 had no significant relationship with any of the hemodynamic parameters including the difference between plasma colloid osmotic pressure and PCW .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None