Keyword Analysis & Research: when did doctors start using anesthesia

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did doctors start using anesthesia	1.59	0.7	8504	74	39
when	1.78	0.2	5473	41	4
did	1.48	0.6	7472	50	3
doctors	1.39	0.8	9868	48	7
start	1.73	0.3	2307	50	5
using	0.72	1	3849	1	5
anesthesia	1.85	0.2	7015	80	10

Keyword	CPC	PCC	Volume	Score
when did doctors start using anesthesia	1.48	0.5	4106	98