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2. Reproductive hazards in the workplace: what the practitioner needs to know about chemical exposures;Paul M.;Obstet. Gynecol.,1988
3. U.S. Congress Office of Technology Assessment. Reproductive Health Hazards in the Workplace. OTA-BA-266 U.S. Government Printing Office Washington DC 1985.
4. PREMATURITY AND OCCUPATIONAL ACTIVITY DURING PREGNANCY
5. Prematurity and work in pregnancy;McDonald A. D.;Br. J. Ind. Med.,1988