In a recent Practice section article on occupational asthma,1 on page 869, column 1, fourth paragraph, third sentence, the line should read “Employers in Canada are required to have an MSDS [material safety data sheet] available on site for any hazardous products, including material that contains at least 0.1% of a known respiratory sensitizer.”
Reference
- 1.Tarlo SM, Liss GM. Occupational asthma: an approach to diagnosis and management. CMAJ 2003; 168(7):867-71. [PMC free article] [PubMed]
