The Prevalence and Risk Factors of Infertility in Moshi in Northern Tanzania • Ulla Larsen, University of Maryland

Testing Socioeconomic Status as a Marker for Condition in the Trivers-Willard Hypothesis within the Human Context • Brandon Wagner, University of North Carolina at Chapel Hill

Reproductive Health and Reproductive History of German Men • Katharina Pyka, University of Marburg ; Hanna Seydel, University of Marburg ; Ronny Westerman, University of Marburg ; Walter Krause, University of Marburg ; Sabine Groos, University of Marburg ; Markus Thiede, University of Marburg ; Martina Schmidt-Stolte, University of Marburg

Effects of Family Structure on Premarital Sexual Intercourse • Zacharie Tsala Dimbuene, Université de Montréal ; Barthelemy D. Kuate, Université de Montréal