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Journal of Occupational Medicine. : Official Publication of the Industrial Medical Association|November 1, 1992
The effectiveness of preemployment drug screening in the prediction of employment outcomeJ Ryan, C Zwerling, M JonesJournal of Occupational and Environmental Medicine|September 1, 1996
Cigarette smoking at hire as a predictor of employment outcomeJ Ryan, C Zwerling, M JonesJAMA|November 28, 1990
The efficacy of preemployment drug screening for marijuana and cocaine in predicting employment outcomeC Zwerling, J Ryan, E J OravAmerican Journal of Public Health|January 1, 1992
Occupational risks associated with cigarette smoking: a prospective studyJ Ryan, C Zwerling, E J OravAmerican Journal of Industrial Medicine|January 1, 1991
Workers' compensation cost shifting: an empirical studyC Zwerling, J Ryan, E J OravAmerican Journal of Preventive Medicine|February 13, 2001
The role of surveillance and evaluation research in the reduction of violence against workersC Peek-Asa, C W Runyan, C ZwerlingAmerican Journal of Preventive Medicine|May 4, 2000
Administrative and behavioral interventions for workplace violence preventionC W Runyan, R C Zakocs, C ZwerlingAmerican Journal of Epidemiology|May 1, 1995
Injury mortality among Iowa farmers, 1980-1988: comparison of PMR and SMR approachesC Zwerling, L F Burmeister, C M JensenNursing Practice (Edinburgh, Scotland)|January 1, 1991
Task allocation: a case of resistance to change?J MerchantPageof 113