| Authors: |
Burke RR; Wisconsin Department of Health Services, Bureau of Environmental and Occupational Health, Madison, WI, USA., Berg RL; Marshfield Clinic Research Institute, Office of Research Support Services, Marshfield, WI, USA., Weichelt BP; Marshfield Clinic Research Institute, National Farm Medicine Center, Marshfield, WI, USA., Gabor RM; Marshfield Clinic Research Institute, Center for Clinical Epidemiology & Population Health, Marshfield, WI, USA., Rudolphi JM; Department of Agricultural & Biological Engineering, University of Illinois, Champaign, IL, USA., Bendixsen CG; Marshfield Clinic Research Institute, National Farm Medicine Center, Marshfield, WI, USA., VanWormer JJ; Marshfield Clinic Research Institute, Center for Clinical Epidemiology & Population Health, Marshfield, WI, USA. |
