Keyword Analysis & Research: who invented the iron lung machine

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
who invented the iron lung machine	0.2	0.6	3891	61	34
who	1.95	1	8975	78	3
invented	1.65	0.9	9050	52	8
the	1.48	0.6	8996	91	3
iron	1.87	0.1	4069	16	4
lung	0.27	0.1	3267	74	4
machine	1.44	0.8	7536	1	7

Keyword	CPC	PCC	Volume	Score
who invented the iron lung machine	0.56	1	6318	51