1. College of Nursing, Montana State University, P.O. Box 173560, Bozeman, MT 59717-3560, USA
2. College of Nursing, Montana State University, 32 Campus Drive no. 7416, Missoula, MT 59812, USA
3. Robert Wood Johnson Foundation Nurse Faculty Scholar and College of Nursing, Montana State University, 32 Campus Drive no. 7416, Missoula, MT 59812, USA
4. Center for Asbestos Related Disease, 214 E 3rd Street, Libby, MT 59923, USA