1. National Farm Medicine Center, Marshfield Clinic Research Institute, National Children’s Center for Rural and Agricultural Safety and Health, Marshfield, WI, USA
2. Department of Agricultural and Biological Engineering, Penn State University, University Park, PA, PA, USA
3. Department of Biological Systems Engineering and UW-Extension, University of Wisconsin-Madison, WI, USA
4. Northeast Center for Occupational Health and Safety (NEC), Bassett Medical Center, Cooperstown, NY, USA
5. Central States Center for Agricultural Safety and Health, University of Nebraska, Omaha, NE, USA