Keikkala Elina, Mustaniemi Sanna, Koivunen Sanna, Kinnunen Jenni, Viljakainen Matti, Männisto Tuija, Ijäs Hilkka, Pouta Anneli, Kaaja Risto, Eriksson Johan G, Laivuori Hannele, Gissler Mika, Erkinheimo Tiina-Liisa, Keravuo Ritva, Huttunen Merja, Metsälä Jenni, Stach-Lempinen Beata, Klemetti Miira M, Tikkanen Minna, Kajantie Eero, Vääräsmäki Marja
PEDEGO Research Unit, Medical Research Centre Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland.
Public Health Promotion Unit, National Institute for Health and Welfare, Helsinki and Oulu, Finland.
Int J Epidemiol. 2020 Jun 1;49(3):762-763g. doi: 10.1093/ije/dyaa039.