abstract published in 1998

journal article published in 2006

journal article published in 2015

journal article published in 2016

journal article published in 2000

journal article published in 1991

NIOSH publication published in 2000

field study published in 2002

field study published in 1996

field study published in 1993

field study published in 1992

field study published in 1993

field study published in 1999

field study published in 1992

field study published in 1994

field study published in 1997

field study published in 1997

field study published in 1996

field study published in 1996

field study published in 1996

field study published in 1996

field study published in 1996

field study published in 1996

field study published in 1998

journal article published in 2002

abstract published in 2004

chapter published in 2002

chapter published in 1994

abstract published in 1994