Age at first intercourse and subsequent sexual partnering among adult women in the United States, a cross-sectional study
1 Department of Health Science, College of Life Sciences, Brigham Young University, 229-B Richards Building, Provo 84602, UT, USA
2 Division of Epidemiology, Department of Family Medicine and Population Health, Virginia Commonwealth University, 830 E. Main Street, 8th Floor, Richmond 23298-0212, VA, USA
3 Department of Quantitative Health Sciences, University of Massachusetts Medical School, 55 Lake Avenue North, AC7-073, Worcester 06155, MA, USA