Materno-fetal and Obstetrics Research Unit, Woman-Mother-Child department, CHUV Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
PharmacoEpidemiology and Drug Safety Research Group, Department of Pharmacy, and PharmaTox Strategic Initiative, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
NorHEAD Norwegian Centre for Headache Research, Department of Clinical Medicine, University of Bergen, Bergen, Norway Jonas Lies vei 87 5021, Bergen Norway