Nystad, W., Magnus, M.C., Parr, C.L. and Håberg, S.E. 2014. Causal pathways for asthma (CASPAR) – MoBa “a happy hunting ground”. Norsk Epidemiologi. 24, 1-2 (Dec. 2014). DOI:https://doi.org/10.5324/nje.v24i1-2.1809.