Matched context for fluoride and bisulfite

The page lists matched contexts for fluoride and bisulfite.

Share - fluoride	Share - bisulfite	Phrase
5.74%	23.24%	calcium {fluoride or bisulfite}
3.68%	27.67%	strontium {fluoride or bisulfite}
3.75%	24.66%	barium {fluoride or bisulfite}
3.71%	24.40%	magnesium {fluoride or bisulfite}