Keyword Analysis & Research: what is the difference between md and do md

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is the difference between md and do md	0.65	0.2	8030	50	43
what	0.52	0.3	9630	37	4
is	1.27	1	6307	2	2
the	1.21	0.3	1230	100	3
difference	0.31	0.2	8568	29	10
between	0.61	0.9	5994	18	7
md	0.46	0.6	142	99	2
and	0.62	0.7	97	43	3
do	0.06	0.6	9410	81	2
md	1.23	0.4	9092	93	2

Keyword	CPC	PCC	Volume	Score
what is the difference between md and do md	0.14	0.5	8931	94