1. Kvinnors behov av ledighet under graviditet borde tillgodoses utan att klassas som sjukdom (Women's need of absence during pregnancy should be met without being classified as disease) (In Swedish);Lindmark, G.;Lakartidningen,1992
2. Pregnant women at work: rest periods to prevent preterm birth;Mamelle, N.; Bertucat, I.; Munoz, F.;Paediatric and Perinatal Epidemiology,1989
3. Sykdom under svangerskapet (Sick leave among pregnant women in Oslo) (In Norwegian);Grunfeld, B.; Qvigstad, E.,1991
4. Is preterm delivery still related to physical working conditions in pregnancy?;Saurel-Cubizolles, M.J.; Subtil, D.; Kaminski, M.;J Epidemiol Community Health,1991
5. Women at Work in Pregnancy;Chamberlain, G.,1984