@inbook{8d0e5cb0e22c11dd990a000ea68e967b,
title = "Seksuaalik{\"a}ytt{\"a}ytyminen ja raskauden ehk{\"a}isy: S Koskinen, L Kestil{\"a}, T Martelin, A Aromaa",
author = "Aro, \{Arja R.\} and P Koponen",
year = "2005",
language = "Finsk",
isbn = "951-740-511-1",
volume = "B7",
series = "Publications of the National Public Health Insititue,",
pages = "55--58",
booktitle = "Nuorten aikuisten terveys. Terveys 2000 tutkimuksen perustulokset 18-29-vuotiaiden terveydest{\"a} ja siihen liittyvista tekij{\"o}ist{\"a}",
publisher = "National Public Health Institute",
}