\HeaderA{retrievePSRseq}{This function, given a file containing exon-level probesets retrieves Probe selection Regions, 
PRS, from RRE db}{retrievePSRseq}
\keyword{manip}{retrievePSRseq}
\begin{Description}\relax
This function retrieve from RRE the PSR sequences associated to the exon-level probe sets
\end{Description}
\begin{Usage}
\begin{verbatim}
retrievePSRseq()
\end{verbatim}
\end{Usage}
\begin{Author}\relax
Raffaele A Calogero
\end{Author}

