Keyword Analysis & Research: what does ppd mean in medical

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does ppd mean in medical	0.06	0.6	7381	95	29
what	0.26	0.5	3690	74	4
does	1.79	0.3	9902	93	4
ppd	1.24	0.8	6015	31	3
mean	1.04	0.9	4159	4	4
in	0.74	0.9	7667	70	2
medical	1.3	0.7	1325	82	7

Keyword	CPC	PCC	Volume	Score
what does ppd mean in medical	0.01	0.8	8231	34