HELP:

The articles are in Medline format with four fields:
 
au
author
ti
title
ab
abstract
so
source

To search  in all the fields, type the word(s)  followingthe syntax

To search  an author , eithertype the name, either type the name followed by " : " and  "au"

                           exemple:  haxhe:au

To serch one or more words in the title,type the word(s) followed by   " : "  and " ti"

                            exemple : catheter:ti

 but if two or more words arelinked together, type "adj" betweenthem

                              exemple: urinary adj catheter:ti    or central adjvenous adj catheter:ti