Occupational Injury Prevention Research in NIOSH
Tài liệu tham khảo
Leigh, 1999, Global burden of disease and injury due to occupational factors, Epidemiology, 10, 626, 10.1097/00001648-199909000-00032
U.S. Bureau of Labor Statistics (BLS), 2008
U.S. Bureau of Labor Statistics (BLS), 2008
U.S. Bureau of Labor Statistics (BLS), 1997
U.S. Bureau of Labor Statistics (BLS), 2006
U.S. Bureau of Labor Statistics (BLS), 2009