%0 Journal Article %T The Norwegian Mother and Child Cohort Study (MoBa) ¨C new research possibilities %A Per Magnus %J Norsk Epidemiologi %D 2007 %I Norsk Forening for Epidemiologi %X The Norwegian Mother and Child Cohort Study (MoBa) is an observational, prospective study of up to 100 000 families. The study aims to find causes of diseases, with a focus on the interplay between early exposures and genetic factors. The collection of possible exposures starts in pregnancy. As of September 2007, about 80 000 families participate. A series of subprojects are ongoing, and analyses and publications are on their way. This paper presents the present situation of MoBa, and highlights new challenges and opportunities. %U http://www.ub.ntnu.no/journals/norepid/2007-2/2007(2)08-Magnus.pdf