<s>
ParaSurf	B-Application
is	O
a	O
molecular	O
modelling	O
system	O
using	O
semi-empirical	O
orbital	O
programs	O
to	O
construct	O
molecular	O
surfaces	O
and	O
calculate	O
local	O
properties	O
and	O
descriptors	O
using	O
pharmaceutical	O
companies	O
for	O
drug	O
design	O
.	O
</s>
<s>
ParaSurf	B-Application
is	O
supplied	O
to	O
and	O
used	O
by	O
many	O
pharmaceutical	O
companies	O
and	O
biotechs	O
,	O
including	O
Boehringer	O
Ingelheim	O
,	O
F	O
.	O
Hoffmann-La	O
Roche	O
and	O
Sanofi-Aventis	O
.	O
</s>
