Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
.wor
ldsc
ient
ific
.com
by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
.wor
ldsc
ient
ific
.com
by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
.wor
ldsc
ient
ific
.com
by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
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ldsc
ient
ific
.com
by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
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ldsc
ient
ific
.com
by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
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ldsc
ient
ific
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by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
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ldsc
ient
ific
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by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
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ldsc
ient
ific
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by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
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ldsc
ient
ific
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by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
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ldsc
ient
ific
.com
by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
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ldsc
ient
ific
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by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
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ldsc
ient
ific
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by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.
Mod
. Phy
s. L
ett.
B 1
997.
11:2
45-2
58. D
ownl
oade
d fr
om w
ww
.wor
ldsc
ient
ific
.com
by W
ASH
ING
TO
N U
NIV
IN
ST
. LO
UIS
on
03/1
6/13
. For
per
sona
l use
onl
y.