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\begin{document}
\nocite{SalBlu90,SalOveJoh90,JohSalBlu90,JohOveSalKallikrein90,Sal91}
\nocite{SalBlu93,SalMatMcN93,SalBlu94,SalOve94,Sal95,MatSalGhi95}
\nocite{SalMedicine95,SalPotYua95,SalBiotech95,SheSalHer95,GhiFriSte96}
\nocite{XuSanSal96,WuHerSal96,HuaWonSal97,SanSal97,SanSalRev97}
\nocite{KouOrlMal97,FeySalSte97,SanSalCASP97,GueOnrSal97,SalACA97}
\nocite{SanSalRev98,HuaSalSte98,KriSal98,WolSalBur98,SanSal98,Sal98}
\nocite{MODBASE99,SalLab99,SanSal99,WuFisKui99,NagGupKim99,MiwIbaCra99}
\nocite{HuaMorSal99,WonTanFey99,WuFisMor99}
\nocite{BurAlmBon99,SalLabb99,MODBASE2000,SalKur99,MODBASE2001,groft2000}
\nocite{Sali2000,FisSal00}

\bibliographystyle{nature-titles}
\bibliography{AS}

\end{document}
