The synergistic effect of smoking habit and lead exposure on iron and steelworkers / Alia Abdel Shakour, Amal Saad Bibliogr.: p. 158-159. - Abstr. eng. In: Central European Journal of Occupational and Environmental Medicine. - ISSN 1219-1221. - 1999. 5. évf. 2. sz., p. 148-159.