Occupational asthma caused by cobalt chloride in a diamond polisher after cessation of occupational exposure: a case report - Krakowiak, Anna; Dudek, Wojciech; Tarkowski, Maciej; Świderska-Kiełbik, Sylwia; Nieścierenko, Ewa; Pałczyński, Cezary (Instytut Medycyny Pracy w Łodzi im. prof. J. Nofera)