1. Erin K. Gasser is Critical Care Nurse Practitioner at University of California, San Francisco Health, San Francisco, California.
2. Hildy M. Schell-Chaple is Clinical Nurse Specialist at University of California, San Francisco Health and Clinical Professor, UCSF School of Nursing, 505 Parnassus Ave, L-976, San Francisco, CA 94143 (Hildegarde.schell-chaple@ucsf.edu).