1445
The model also predicts that blood flow shunt fraction ( Qs / QT ) is directly related to the oxygen sine - wave amplitude perturbations transmitted to end - expired air and arterial and mixed - venous blood through two simple equations .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None