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American Industrial Hygiene Association Journal|July 1, 1987
Electron microscopic analyses of dust from the lungs and the lymph nodes of talc-mine employeesK H FriedrichsLa Medicina Del Lavoro|January 1, 1989
Electron microscopic evaluation of atmospheric dustK H FriedrichsZentralblatt Fur Bakteriologie, Mikrobiologie Und Hygiene. 1. Abt. Originale B, Hygiene|December 1, 1985
Microscopic observations on some fibrous dust samplesK H Friedrichs, B MolikZentralblatt Fur Bakteriologie, Mikrobiologie Und Hygiene. 1. Abt. Originale B, Hygiene|August 1, 1982
[Changes in chrysotile in vivo]D Höhr, K H FriedrichsAmerican Industrial Hygiene Association Journal|February 1, 1981
Fibers in human lung dust samples: a scanning electron microscope studyK H Friedrichs, H OttoZentralblatt Fur Bakteriologie, Parasitenkunde, Infektionskrankheiten Und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Praventive Medizin|March 1, 1976
[The measurement of fibre concentrations in lung dusts (author's transl)]K H Friedrichs, H J EinbrodtInternational Archives of Allergy and Immunology|June 25, 2021
In vitro Interaction between Human Basophils and Polymorphonuclear Granulocytes Effect of Airborne Particulate MatterB Hitzfeld, H Friedrichs, H BehrendtZentralblatt Fur Bakteriologie, Mikrobiologie Und Hygiene. 1. Abt. Originale B, Hygiene|March 1, 1984
[A dust generator for inhalation experiments in a high-pressure chamber]K H Friedrichs, K H BergmannZentralblatt Fur Bakteriologie, Parasitenkunde, Infektionskrankheiten Und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Praventive Medizin|August 1, 1976
[Results of animal experiments concerning the carcinogenic effect of fibrous dusts and their interpretation with regard to the carcinogenesis in humans (author's transl)]F Pott, K H Friedrichs, F HuthEnvironmental Health Perspectives|December 1, 1974
Tumorigenic effect of fibrous dusts in experimental animalsF Pott, F Huth, K H FriedrichsPageof 3