1. Department of Family and Community Medicine Penn State Hershey Medical Center Hershey PA USA
2. Department of Family Medicine Boonshoft School of Medicine Wright State University Dayton OH USA
3. Department of Obstetrics and Gynecology Boonshoft School of Medicine Wright State University Dayton OH USA
4. Department of Family and Community Medicine McAllen Family Medicine Residency Program University of Texas Health Science Center San Antonio TX USA
5. Division of Maternal Fetal Medicine Department of Obstetrics and Gynecology Hershey Medical Center Pennsylvania State University Hershey PA USA