2734
Comparison of beta 2 - microglobulin removal using the same polysulphone membrane for haemodialysis and haemofiltration shows that beta 2 - microglobulin is more effectively removed by convection than by diffusion when both treatment modes are matched for blood flow and urea clearance .
 beta 2 - microglobulin, beta 2 - microglobulin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 beta 2 - microglobulin, beta 2 - microglobulin