1. The University of Iowa, College of Nursing, 426 CNB, Iowa City, IA 52242, USA.
2. Oregon Health & Science University, School of Nursing, SN-6S 3455 SW US Veterans Hospital Road, Portland, OR 97239, USA
3. The University of Iowa, College of Nursing, 364 CNB, Iowa City, IA 52242, USA
4. The University of Iowa, College of Nursing, 436 CNB, Iowa City, IA 52242, USA
5. The University of Iowa, Carver College of Medicine, 1-103 MEB, Iowa City, IA 52242, USA