4986
Present studies test if the soluble guanylate cyclase stimulator BAY 41 - 8543 reduces pulmonary vascular resistance and protects RV function .
 BAY 41 - 8543
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 BAY 41 - 8543