the first operation under ether

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
the first operation under ether	0.39	0.5	2543	89	31
the	0.9	0.4	7400	22	3
first	0.32	0.6	702	7	5
operation	1.41	0.4	3600	7	9
under	1.24	0.2	7421	49	5
ether	0.59	1	7211	57	5

Keyword	CPC	PCC	Volume	Score
the first operation under ether	1.28	0.6	4851	34
first operation under ether painting	1.7	0.6	1555	7
ether first used in surgery	1.82	1	3387	9
who first used ether	0.61	0.3	125	30
when was ether invented	0.22	0.8	3445	46
when was ether discovered	1.24	0.8	9150	62
when was ether first used as anesthesia	1.4	0.5	9089	78
patrolling the ether 1944	1.08	1	8775	38
put into the ether	0.19	0.3	2423	9
pulled out of the ether	0.49	0.6	206	19
when did ether stop being used	0.77	0.9	3020	50
who used ether as an anesthetic	1.05	0.3	2146	21
when was ether stopped being used	1.55	1	4043	33
ethercat mode of operation	0.61	0.3	7568	64