1. 29 CFR 1904 Recording and reporting of occupational injuries and illnesses. Occupational Safety and Health Standards, http://www.osha.gov/pls/oshaweb/owasrch.search_form?p_doc_type=STANDARDS&p_toc_level=1&p_keyvalue=1904. Accessed on 8 February 2016.
2. 29 CFR 1910.151 Medical services and first aid standard. Occupational Safety and Health Standards, http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9806. Accessed on 8 February 2016.
3. 2015 TLVs and BEIs;ACGIH,2015
4. Occupational injury and illness surveillance: Conceptual filters explain underreporting;Azaroff;American Journal of Public Health,2002
5. Capture–recapture estimates of nonfatal workplace injuries and illnesses;Boden;Annals of Epidemiology,2008