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2 Feb
2005
2 Feb
'05
4:01 p.m.
You should make a system using relate
On the example page http://www.epidata.dk/examples.php you will find several examples.
Some very complicated like the one YVES has made, but others are simple - but comprehensive, e.g. that included with the installation of EpiData you have the house,person,rec system.
regards
Jens Lauritsen