title: [Shift work and pregnancy].
authors.forename: Johan Hviid
authors.initials: JH
authors.lastname: Andersen
mesh_terms: D021081:Chronobiology Disorders / Q000150:complications / Q000209:etiology; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D016273:Occupational Exposure / Q000009:adverse effects*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology* / Q000517:prevention & control; D011256:Pregnancy Outcome; D012307:Risk Factors