Study	Treated	Placebo
Blashki.et.al.	1.75	1.02
Byerly.et.al.	2.3	1.37
Claghorn.et.al.	1.91	1.49
Davidson&Turnbull	4.77	2.28
Elkin.et.al.	2.35	2.01
Goldberg.et.al.	0.44	0.44
Joffe.et.al.	1.43	0.61
Kahn.et.al.	2.25	1.48
Kiev&Okerson	0.44	0.42
Lydiard	2.59	1.93
Ravaris.et.al.	1.42	0.91
Rickels.et.al.	1.86	1.45
Rickels&Case	1.71	1.17
Robinson.et.al.	1.13	0.76
Schweizer.et.al.	3.13	2.13
Stark&Hardison	1.4	1.03
van.der.Velde	0.66	0.1
White.et.al.	1.5	1.14
Zung	0.88	0.95