While I was reading the following article, I found it was really difficult to understand the grammar and the exact meaning of the following sentence. This is mainly attributed to the fact that I cannot understand whether the writer states that the majority of cells already have been used or not.
Though there are hundreds of cell lines available in the United States, WI-38 makes up the majority of the cells used
Reference:-
https://www.bbc.com/future/article/20201103-the-controversial-cells-that-saved-10-million-lives
dileepa Though there are hundreds of cell lines available in the United States, WI-38 makes up the majority of the cells used ~ There are hundreds of cell lines available in the United States, but the cell line called "WI-38" is the cell line that is used most. CJ
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dileepaThough there are hundreds of cell lines available in the United States, WI-38 makes up the majority of the cells used
~ There are hundreds of cell lines available in the United States, but the cell line called "WI-38" is the cell line that is used most.
CJ