Intended and Unintended Pregnancies Worldwide in 2012 and Recent Trend (Sedgh)
Gilda Sedgh, Susheela Singh, and Rubina Hussain. "Intended and Unintended Pregnancies Worldwide in 2012 and Recent Trends". Studies in Family Planning 2014; 45[3]: 301–314.
Artículo sobre las últimas tendencias (a 2012) sobre el embarazo planificado y no planificado.