IRB

Articles in SafetyLit
Y-Axis = Volume :: X-Axis = Issue
?=unknown status :: X=no issue published :: nn=articles from issue :: A=relevant article(s) IDed to add
S=searched, nothing relevant :: O=issue published but not yet searched :: C=combination issue

	1	2	3	4	5	6	7	10

2 (1980)	?	?	1	?	1	1	1	1
3 (1981)	?	1	?	?	1	?	?	?
4 (1982)	?	?	?	?	?	1	?	?
9 (1987)	1	?	?	?	?	?	?	?
11 (1989)	?	?	?	1	?	?	?	?
12 (1990)	1	?	?	?	?	?	?	?
13 (1991)	?	?	?	?	?	1	?	?
21 (1999)	?	?	1	?	?	?	?	?
24 (2002)	?	1	?	?	?	?	?	?
28 (2006)	?	1	?	?	?	?	?	?