1. School of Nursing, Oregon Health & Science University , Portland, OR , USA
2. Knight Cardiovascular Institute, Oregon Health & Science University , 3455 SW U.S. Veteran's Hospital Rd, SN-ORD, Portland, OR 97239 , USA
3. William F. Connell School of Nursing, Boston College , Chestnut Hill, MA , USA
4. Australian Catholic University , Melbourne , Australia