Study | Reason for exclusion |
---|---|
Brega Massone 2003 | Case control study |
Gagarine 2003 | Case control study |
Grunenwald 1989 | Case control study |
Gundogdu 2006 | Non‐randomized comparative study |
Ito 2003 | Non‐randomized comparative study |
Izbiki 1994 | Animal case series |
Kiaergard 2000 | Randomized animal study |
Kobayashi 2001 | Non‐randomized comparative study in rats |
Massone 2002 | Case control study |
Matsumura 2004 | Non‐randomized comparative study |
McCarthy 1988 | Randomized animal study |
Miyamoto 2003 | Clinical case series |
Nomori 2000 | Non‐randomized comparative study |
Omote 1994 | Non‐randomized comparative study |
Potaris 2003 | Case control study |
Ranger 1997 | Randomized animal study |
Sabanathan 1993 | Clinical case series |
Ueda 2007 | Case control study |