SHIFT WORK, LONG WORKING HOURS AND PRETERM BIRTH: A SYSTEMATIC REVIEW AND META-ANALYSIS Article Van Melick M.J., Van Beukering M.D.M., Mol B.W., Frings-Dresen M.H.W., Hulshof C.T.J. International Archives of Occupational and Environmental Health. Springer Science and Business Media Deutschland GmbH. Vol. 87. 2014. P. 835-849