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Keyword	CPC	PCC	Volume	Length string	Score
which term means difficult breathing	0.89	0.5	9780	36	47
which term means difficulty breathing	0.24	1	7432	37	87
medical term that means difficult breathing	1.15	0.3	8348	43	80
the term that means difficult breathing is:	1.72	0.8	2924	43	63
what term means difficult breathing	0.01	0.9	8752	35	11
what medical term means difficult breathing	0.73	0.5	9911	43	43
difficult breathing med term	0.59	1	4561	28	39
this word means difficulty breathing	1.29	1	2005	36	86
the medical term for difficulty breathing is	1.84	0.2	4143	44	24
difficulty in breathing is called	0.16	0.9	7672	33	71

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