Susheela Singh is the vice president for research at the Guttmacher Institute. A prolific author, her current areas of international research include the costs and benefits of providing reproductive health services, the economic costs of unsafe abortion, unplanned pregnancy and abortion, prevention of HIV among youth in Sub Saharan Africa, adolescent sexual and reproductive behavior in Central America, and unmet need for contraception in developing countries. Tamara Fetters is a senior research associate at Ipas, whose research has taken her from Indonesia to Zambia. Her current research includes a province-wide introduction to medical abortion in KwaZulu-Natal, South Africa; the introduction of misoprostol for postabortion care services in three Nigerian hospitals, and the morbidity and mortality measurement due to unsafe abortion in Cambodia.