1. Need, use and expense of health services in Finland, 1964–1976;Kalimo,1982
2. Spaed-og småbørns almindelige sygelighed — forekomst og sociale konsekvenser;Uldall,1986
3. Acute illnesses in children. A description and analysis of the cumulative incidence proportion;Hansen;Scand J Prim Health Care,1993
4. Acute illnesses in children. A description and analysis of the parents' perception of illness threat;Hansen;Scand J Prim Health Care,1994
5. Forldrerapporteret sygelighed og sygdomsadfrd;Hansen,1993