A.Search (Common Cold and drug therapy) B.Search (Common Cold and drug therapy) Limits:Systematic Reviews C.Search (Common Cold /drug therapy) Limits:Systematic Reviews D.Search (Common Cold and drug therapy and EBM)
A.Medical Matrix B.Cliniweb International C.HONselect D.CALIS
A.Lin-L in au B.Lin L [au] C.AU=Lin L D.Lin L=au