FDASIS.NLM.NIH.GOV has 10 keywords

First position — 1 keywords | Third position — 2 keywords

Keywords Analytic

the 1th position for fdasis.nlm.nih.gov

#	Keyword	Results	Change	Check Date
1	srs registration ifresi	1 610 000	0	2014-05-04

the 3th position for fdasis.nlm.nih.gov

#	Keyword	Results	Change	Check Date
3	srs registration number	522 000	0	2014-12-08
3	codes in registration system	39 300 000	0	2014-12-07

positions above than 3th fdasis.nlm.nih.gov

#	Keyword	Results	Change	Check Date
6	registration system	177 000 000	-1	2013-11-19
12	FDA Number	132 000 000	0	2014-10-11
17	FDA	261 000 000	0	2015-03-10
19	FDA registered	24 500 000	0	2014-06-05
22	FDA-Registered	24 600 000	0	2014-06-06
28	fda database	27 400 000	0	2015-05-21
46	ＳＲＳ	42 400 000	0	2014-03-01