- Correspondence to Dr Heather Sipsma, Department of Women, Children and Family Health Science, College of Nursing, University of Illinois at Chicago, 845 South Damen Avenue (MC 802), Chicago, IL 60612, USA;
- Received March 18, 2013
- Revised May 17, 2013
- Accepted July 17, 2013
- First published August 8, 2013.
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