1072
The mechanisms regulating human immunodeficiency virus ( HIV ) persistence in human monocytes /macrophages are partially understood.
 /macrophages, monocytes
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 /macrophages, monocytes