1 Department of Health Sciences, Northern Arizona University, Flagstaff, Arizona. Electronic address: [email protected].
2 Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, Alberta, Canada.
3 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Massachusetts Chan Medical School, Worcester, Massachusetts.
4 Department of Obstetrics and Gynecology, Pediatrics, Psychiatry and Population & Quantitative Health Sciences, University of Massachusetts Chan Medical School, Worcester, Massachusetts.
5 Department of Allied Health Sciences, University of Connecticut, Storrs, Connecticut.