EXCERPTA MEDICA INTERNATIONAL CONGRESS SER. ; 890 549,516 NEW New trends and developments in occupational health services : Proceedings of the International Symposium on New Trends and Developments in Occupational Health Services, Espoo, 3-6 October 1989 / eds. Jorma Rantanen and Suvi Lehtinen ; assoc, ed. Mari Antti-Poika [et al.]. - Amsterdam [etc.] : Excerpta Medica, 1991. - XXI, 203 s. : wykr. ; 24 cm (International Congre Ser. ; 890) IISBN 0-444-81401-9