Keyword Analysis & Research: when was general anesthesia first used

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was general anesthesia first used	0.06	0.6	6306	84	38
when	1.28	0.4	9041	20	4
was	0.52	1	982	67	3
general	1.14	0.4	5391	16	7
anesthesia	1.8	0.8	5237	9	10
first	0.56	0.8	384	33	5
used	0.56	0.7	1300	18	4

Keyword	CPC	PCC	Volume	Score
when was general anesthesia first used	1.73	1	5988	87