R M Ikeda, L L Dahlberg, M-j Kresnow, J J Sacks and
J A Mercy Injury Prevention, 2003;9:53-57 Owning a gun is
not equivalent to having access to a gun within
10 minutes or less, and vice versa.

This treatment points out that a survey respondent
asserting the mere ownership of a firearm should not be
equated with the ability or opportunity to employ one in a
crisis situation.
http://ip.bmjjournals.com/cgi/content/full/9/1/53?maxtoshow=&HITS=10&hits=10&RES